TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
REFLEXION SPECULAIRE [17 records]
Record 1 - internal organization data 2025-03-31
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
- Electromagnetic Radiation
- Soil Science
Record 1, Main entry term, English
- soil spectroscopy
1, record 1, English, soil%20spectroscopy
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The principles of soil spectroscopy are based in nuclear physics. Elements in the soil react in unique ways to the energy from the electromagnetic spectrum, reflecting some wavelengths and absorbing others. The reflected wavelengths give scientists clues to which minerals and elements are present and in what quantities. That information can then be related to certain soil properties, like whether it's suitable for certain crops, or whether it's effectively sequestering carbon. 2, record 1, English, - soil%20spectroscopy
Record 1, French
Record 1, Domaine(s)
- Physique atomique
- Rayonnements électromagnétiques
- Science du sol
Record 1, Main entry term, French
- spectroscopie du sol
1, record 1, French, spectroscopie%20du%20sol
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- spectroscopie des sols 1, record 1, French, spectroscopie%20des%20sols
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
En spectroscopie des sols, c'est l'énergie réfléchie par la surface du sol qui est la plus intéressante. Il existe deux types de réflexion : la réflexion spéculaire(comme les miroirs) et la réflexion diffuse. Le mode de réflexion diffuse est celui que les spectromètres utilisent dans l'analyse des sols. 1, record 1, French, - spectroscopie%20du%20sol
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2007-01-31
Record 2, English
Record 2, Subject field(s)
- Remote Sensing
Record 2, Main entry term, English
- ground reflectance
1, record 2, English, ground%20reflectance
correct, officially approved
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
reflectance: The proportion of the light incident upon a surface, which is reflected or scattered by it. 2, record 2, English, - ground%20reflectance
Record number: 2, Textual support number: 2 OBS
ground reflectance: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 3, record 2, English, - ground%20reflectance
Record 2, French
Record 2, Domaine(s)
- Télédétection
Record 2, Main entry term, French
- réflectance au sol
1, record 2, French, r%C3%A9flectance%20au%20sol
correct, feminine noun, officially approved
Record 2, Abbreviations, French
Record 2, Synonyms, French
- réflectance du sol 2, record 2, French, r%C3%A9flectance%20du%20sol
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Réflectance mesurée au niveau du sol. 3, record 2, French, - r%C3%A9flectance%20au%20sol
Record number: 2, Textual support number: 1 OBS
réflectance : Rapport de l'énergie réfléchie par un milieu matériel à l'énergie incidente. La réflectance s’applique à la réflexion spéculaire ou à la réflexion diffuse. 4, record 2, French, - r%C3%A9flectance%20au%20sol
Record number: 2, Textual support number: 2 OBS
réflectance au sol : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 5, record 2, French, - r%C3%A9flectance%20au%20sol
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Teledetección
Record 2, Main entry term, Spanish
- reflectancia de suelo
1, record 2, Spanish, reflectancia%20de%20suelo
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2007-01-31
Record 3, English
Record 3, Subject field(s)
- Space Physics
- Remote Sensing
Record 3, Main entry term, English
- backscattering coefficient
1, record 3, English, backscattering%20coefficient
correct, officially approved
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A microwave radar signal is emitted from an antenna installed aboard a satellite or an airplane. The signal is reflected by the objects on the ground. The resulting backscattering coefficient is influenced by the surface roughness and the dielectric properties of the objects. 2, record 3, English, - backscattering%20coefficient
Record number: 3, Textual support number: 1 OBS
dielectric: Having the property of transmitting electric effects without conduction. 3, record 3, English, - backscattering%20coefficient
Record number: 3, Textual support number: 2 OBS
backscattering coefficient: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 3, English, - backscattering%20coefficient
Record 3, Key term(s)
- back-scattering coefficient
Record 3, French
Record 3, Domaine(s)
- Physique spatiale
- Télédétection
Record 3, Main entry term, French
- coefficient de rétrodiffusion
1, record 3, French, coefficient%20de%20r%C3%A9trodiffusion
correct, masculine noun, officially approved
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
L’intensité d’une image radar [...] est liée au coefficient de rétrodiffusion, c’est-à-dire la capacité des surfaces à renvoyer les ondes radar vers l’antenne du radar. Le coefficient de rétrodiffusion est un indicateur de la rugosité des surfaces et de leur humidité. 2, record 3, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 3, Textual support number: 2 CONT
Le coefficient de rétrodiffusion radar est un des paramètres mesurables sur une image radar. [...] Sur une surface inondée(présence d’eau libre), la réflexion du signal est spéculaire et l'intensité rétrodiffusée quasiment nulle. Par contre, pour un sol partiellement saturé, plus la teneur en eau est élevée, plus la constante diélectrique est grande, donc moins l'onde pénètre dans le sol et plus l'intensité rétrodiffusée est forte. 3, record 3, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 3, Textual support number: 1 OBS
diélectrique : Qui ne conduit pas le courant électrique. 4, record 3, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 3, Textual support number: 2 OBS
spéculaire : Se dit de ce qui réfléchit la lumière comme un miroir. 5, record 3, French, - coefficient%20de%20r%C3%A9trodiffusion
Record number: 3, Textual support number: 3 OBS
coefficient de rétrodiffusion : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 5, record 3, French, - coefficient%20de%20r%C3%A9trodiffusion
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física espacial
- Teledetección
Record 3, Main entry term, Spanish
- coeficiente de retrodispersión
1, record 3, Spanish, coeficiente%20de%20retrodispersi%C3%B3n
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- coeficiente de retrodifusión 2, record 3, Spanish, coeficiente%20de%20retrodifusi%C3%B3n
correct, masculine noun
Record 3, Textual support, Spanish
Record 4 - internal organization data 2007-01-31
Record 4, English
Record 4, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Spacecraft
- Remote Sensing
Record 4, Main entry term, English
- nadir ambiguity
1, record 4, English, nadir%20ambiguity
correct, officially approved
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A form of ghosting that appears as bright linear features with approximately constant range. 2, record 4, English, - nadir%20ambiguity
Record number: 4, Textual support number: 1 CONT
Wide beam 3 is currently not recommended due to the presence of a nadir ambiguity in the data. Although the data on either side of the ambiguity is not affected, the nadir ambiguity produces a very bright vertical line in the image. 3, record 4, English, - nadir%20ambiguity
Record number: 4, Textual support number: 1 OBS
nadir ambiguity: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 4, English, - nadir%20ambiguity
Record 4, French
Record 4, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Engins spatiaux
- Télédétection
Record 4, Main entry term, French
- ambiguïté sur le nadir
1, record 4, French, ambigu%C3%AFt%C3%A9%20sur%20le%20nadir
correct, feminine noun, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
- ambiguïté de nadir 2, record 4, French, ambigu%C3%AFt%C3%A9%20de%20nadir
feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Effet fantôme se manifestant par des formes linéaires brillantes dont la distance en portée est à peu près constante. 3, record 4, French, - ambigu%C3%AFt%C3%A9%20sur%20le%20nadir
Record number: 4, Textual support number: 1 CONT
Le signal reçu du nadir est une forte réflexion spéculaire de cibles situées à très faible distance en portée. Il en résulte sur l'image des tons très brillants. À cause de la compression des impulsions, le signal puissant se restreint à un petit nombre de pixels en portée. Sur les images à faisceau unique, les ambiguïtés de nadir peuvent apparaître près de la bordure des images en mode large, obtenues en temps réel ou au centre des images. Dans cette opération, les opportunités d’attraper une petite caractéristique spécifique digne d’intérêt sont rares pour ne pas dire inexistantes. 2, record 4, French, - ambigu%C3%AFt%C3%A9%20sur%20le%20nadir
Record number: 4, Textual support number: 1 OBS
ambiguïté sur le nadir : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR) et par le Comité d’uniformisation de la terminologie spatiale (CUTS). 3, record 4, French, - ambigu%C3%AFt%C3%A9%20sur%20le%20nadir
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Naves espaciales
- Teledetección
Record 4, Main entry term, Spanish
- ambigüedad del nadir
1, record 4, Spanish, ambig%C3%BCedad%20del%20nadir
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2006-10-16
Record 5, English
Record 5, Subject field(s)
- Atmospheric Physics
- Space Physics
Record 5, Main entry term, English
- specular reflection
1, record 5, English, specular%20reflection
correct, officially approved
Record 5, Abbreviations, English
Record 5, Synonyms, English
- regular reflection 2, record 5, English, regular%20reflection
correct
- direct reflection 3, record 5, English, direct%20reflection
- mirror reflection 3, record 5, English, mirror%20reflection
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Reflection of electromagnetic, acoustic, or water waves in which the reflected waves travel in a definite direction, and the directions of the incident and reflected waves make equal angles with a line perpendicular to the reflecting surface, and lie in the same plane with it. 3, record 5, English, - specular%20reflection
Record number: 5, Textual support number: 1 OBS
Specular reflection is described by the law of reflection, according to which incident and reflected waves lie in the plane of incidence, defined by the normal to the interface and the direction of the incident wave, and make the same angle of incidence with this normal. Specular reflection is distinguished from refraction in that the direction of propagation of the reflected wave has a component opposite the direction of the incident wave. Although the law of (specular) reflection is often a good approximation, it is not exact ... 4, record 5, English, - specular%20reflection
Record number: 5, Textual support number: 2 OBS
specular reflection: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 5, record 5, English, - specular%20reflection
Record 5, French
Record 5, Domaine(s)
- Physique de l'atmosphère
- Physique spatiale
Record 5, Main entry term, French
- réflexion spéculaire
1, record 5, French, r%C3%A9flexion%20sp%C3%A9culaire
correct, feminine noun, standardized, officially approved
Record 5, Abbreviations, French
Record 5, Synonyms, French
- réflexion régulière 2, record 5, French, r%C3%A9flexion%20r%C3%A9guli%C3%A8re
correct, feminine noun, standardized
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Réflexion du rayonnement par une surface lisse, comme un miroir, telle que l’angle d’incidence et l’angle de réflexion sont égaux. 3, record 5, French, - r%C3%A9flexion%20sp%C3%A9culaire
Record number: 5, Textual support number: 2 DEF
Réflexion obéissant aux lois optiques (ou lois de Descartes), valables pour les miroirs. [Définition normalisée par l’AFNOR et reproduite avec son autorisation.] 4, record 5, French, - r%C3%A9flexion%20sp%C3%A9culaire
Record number: 5, Textual support number: 1 OBS
réflexion spéculaire; réflexion régulière : termes normalisés par l'AFNOR. 5, record 5, French, - r%C3%A9flexion%20sp%C3%A9culaire
Record number: 5, Textual support number: 2 OBS
réflexion spéculaire : terme uniformisé par le Comité d’uniformisation de la terminologie spatiale(CUTS) et par le Groupe de travail de la terminologie de RADARSAT-2(GTTR). 6, record 5, French, - r%C3%A9flexion%20sp%C3%A9culaire
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Física de la atmósfera
- Física espacial
Record 5, Main entry term, Spanish
- reflexión especular
1, record 5, Spanish, reflexi%C3%B3n%20especular
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Reflexión de la radiación por una superficie lisa, como un espejo, en que los ángulos de incidencia y de reflexión son iguales. 2, record 5, Spanish, - reflexi%C3%B3n%20especular
Record number: 5, Textual support number: 1 CONT
[...] las vueltas en un sentido y otro están relacionadas por reflexiones especulares. 3, record 5, Spanish, - reflexi%C3%B3n%20especular
Record 6 - internal organization data 2006-10-16
Record 6, English
Record 6, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Electromagnetic Radiation
- Space Physics
Record 6, Main entry term, English
- radar reflection
1, record 6, English, radar%20reflection
correct, officially approved
Record 6, Abbreviations, English
Record 6, Synonyms, English
- reflection 2, record 6, English, reflection
correct
- reflexion 3, record 6, English, reflexion
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
The return of electromagnetic waves, generated by a radar installation, from an object on which the waves are incident. 4, record 6, English, - radar%20reflection
Record number: 6, Textual support number: 1 OBS
Reflection may be diffuse, when the incident radiation is scattered upon being reflected from the surface, or specular when all or most angles of reflection equal the angle of incidence. 5, record 6, English, - radar%20reflection
Record number: 6, Textual support number: 2 OBS
radar reflection: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 6, record 6, English, - radar%20reflection
Record 6, Key term(s)
- radar reflexion
Record 6, French
Record 6, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Rayonnements électromagnétiques
- Physique spatiale
Record 6, Main entry term, French
- réflexion radar
1, record 6, French, r%C3%A9flexion%20radar
correct, feminine noun, officially approved
Record 6, Abbreviations, French
Record 6, Synonyms, French
- réflexion 2, record 6, French, r%C3%A9flexion
correct, feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Phénomène par lequel une onde électromagnétique ou élastique est renvoyée par une surface qu’elle rencontre. 3, record 6, French, - r%C3%A9flexion%20radar
Record number: 6, Textual support number: 1 OBS
réflexion radar : terme uniformisé par le Groupe de travail de la terminologie RADARSAT-2 (GTTR). 4, record 6, French, - r%C3%A9flexion%20radar
Record number: 6, Textual support number: 1 PHR
Réflexion diffuse, spéculaire. 4, record 6, French, - r%C3%A9flexion%20radar
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Radiación electromagnética
- Física espacial
Record 6, Main entry term, Spanish
- reflexión
1, record 6, Spanish, reflexi%C3%B3n
correct, feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Retorno al propio medio de propagación de ondas o partículas materiales que inciden sobre sus superficies límite. 1, record 6, Spanish, - reflexi%C3%B3n
Record 7 - internal organization data 2006-04-18
Record 7, English
Record 7, Subject field(s)
- Remote Sensing
Record 7, Main entry term, English
- sun glitter
1, record 7, English, sun%20glitter
correct, officially approved
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
The specularly reflected Sun light. 2, record 7, English, - sun%20glitter
Record number: 7, Textual support number: 1 CONT
Due to the variably oriented wave facets which reflect direct solar radiation in many directions other than the direction of specular reflection, the resulting radiance distribution of a remote sensing image shows glitter patterns. Therefore, the portion of reflected direct sunlight is called sun glitter. 3, record 7, English, - sun%20glitter
Record number: 7, Textual support number: 1 OBS
sun glitter: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 7, English, - sun%20glitter
Record 7, French
Record 7, Domaine(s)
- Télédétection
Record 7, Main entry term, French
- miroitement
1, record 7, French, miroitement
correct, masculine noun, officially approved
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Réflexion spéculaire de la lumière du Soleil. 2, record 7, French, - miroitement
Record number: 7, Textual support number: 1 OBS
miroitement : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 2, record 7, French, - miroitement
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2005-08-10
Record 8, English
Record 8, Subject field(s)
- Optics
- Electromagnetic Radiation
- Meteorology
Record 8, Main entry term, English
- metallic reflection
1, record 8, English, metallic%20reflection
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- reflection from metals 2, record 8, English, reflection%20from%20metals
correct
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
Vitreous reflection and refraction, metallic reflection and absorption. 3, record 8, English, - metallic%20reflection
Record number: 8, Textual support number: 1 OBS
The law of reflection governs the reflection of light-rays off smooth conducting surfaces, such as polished metal or metal-coated glass mirrors. 4, record 8, English, - metallic%20reflection
Record 8, French
Record 8, Domaine(s)
- Optique
- Rayonnements électromagnétiques
- Météorologie
Record 8, Main entry term, French
- réflexion métallique
1, record 8, French, r%C3%A9flexion%20m%C3%A9tallique
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Lorsque la surface réfléchissante est celle d’un métal bien poli et non oxydé, on a affaire à une réflexion métallique, régulière ou spéculaire et dans ce cas, la réflexion répond à des lois géométriques bien connues en optique. 2, record 8, French, - r%C3%A9flexion%20m%C3%A9tallique
Record number: 8, Textual support number: 1 OBS
réflection : Phénomène correspondant à un changement brutal de direction du rayonnement incident qui atteint une surface ou un milieu réfléchissant, sans modification de la longueur d’onde. 2, record 8, French, - r%C3%A9flexion%20m%C3%A9tallique
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2005-03-24
Record 9, English
Record 9, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Spacecraft
- Remote Sensing
Record 9, Main entry term, English
- angle of reflection
1, record 9, English, angle%20of%20reflection
correct, officially approved
Record 9, Abbreviations, English
Record 9, Synonyms, English
- angle of reflexion 2, record 9, English, angle%20of%20reflexion
correct, Great Britain
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
The angle between a reflected ray and the normal drawn at the point of incidence to a reflecting surface. 3, record 9, English, - angle%20of%20reflection
Record number: 9, Textual support number: 1 CONT
Specular reflection occurs when the energy which is reflected by the surface continues to travel in one direction and the angle of reflection is equal to the angle of incidence. 4, record 9, English, - angle%20of%20reflection
Record number: 9, Textual support number: 1 OBS
angle of reflection: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 5, record 9, English, - angle%20of%20reflection
Record 9, French
Record 9, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Engins spatiaux
- Télédétection
Record 9, Main entry term, French
- angle de réflexion
1, record 9, French, angle%20de%20r%C3%A9flexion
correct, masculine noun, officially approved
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Angle formé au point d’incidence par le rayon réfléchi et la normale à la surface. 2, record 9, French, - angle%20de%20r%C3%A9flexion
Record number: 9, Textual support number: 1 CONT
Réflection spéculaire : l'énergie est réfléchie de telle sorte que l'angle de réflexion est égal à l'angle d’incidence. Ceci recrée l'effet de la réflexion miroir. 3, record 9, French, - angle%20de%20r%C3%A9flexion
Record number: 9, Textual support number: 1 OBS
angle de réflexion : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 4, record 9, French, - angle%20de%20r%C3%A9flexion
Record 9, Spanish
Record 9, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Naves espaciales
- Teledetección
Record 9, Main entry term, Spanish
- ángulo de reflexión
1, record 9, Spanish, %C3%A1ngulo%20de%20reflexi%C3%B3n
correct, masculine noun
Record 9, Abbreviations, Spanish
Record 9, Synonyms, Spanish
Record 9, Textual support, Spanish
Record number: 9, Textual support number: 1 DEF
Angulo formado por un rayo reflejado y la normal a la superficie reflectora, en el punto de incidencia. 2, record 9, Spanish, - %C3%A1ngulo%20de%20reflexi%C3%B3n
Record 10 - internal organization data 2004-08-04
Record 10, English
Record 10, Subject field(s)
- Lighting
- Photography
Record 10, Main entry term, English
- specular lighting
1, record 10, English, specular%20lighting
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
... lighting [that depends] on the position of the viewer as well as the direction of light and orientation of the triangle being rendered. 1, record 10, English, - specular%20lighting
Record number: 10, Textual support number: 1 CONT
Shining a spotlight into a dark corner of a room onto a TV set and looking at the hot spots on the picture tube will show you specular lighting. Specular lighting captures the mirror-like properties of an object so effects such as reflection and glare are achievable. 1, record 10, English, - specular%20lighting
Record 10, Key term(s)
- specular light
Record 10, French
Record 10, Domaine(s)
- Éclairage
- Photographie
Record 10, Main entry term, French
- éclairage spéculaire
1, record 10, French, %C3%A9clairage%20sp%C3%A9culaire
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
[...] éclairage [qui] dépend de la position du spectateur ainsi que de la direction de la lumière et de l’orientation de l’objet éclairé. 2, record 10, French, - %C3%A9clairage%20sp%C3%A9culaire
Record number: 10, Textual support number: 1 CONT
Par exemple, le faisceau d’une torche réfléchira différemment un étang et un brin d’herbe. L'éclairage spéculaire capture les propriétés de miroir d’un objet afin d’obtenir des effets tels que la réflexion et la brillance. 2, record 10, French, - %C3%A9clairage%20sp%C3%A9culaire
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2004-07-30
Record 11, English
Record 11, Subject field(s)
- Atmospheric Physics
- The Sun (Astronomy)
Record 11, Main entry term, English
- sunglint
1, record 11, English, sunglint
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 DEF
Specular reflection of the Sun's direct rays by a water surface. 2, record 11, English, - sunglint
Record number: 11, Textual support number: 1 OBS
This reflection appears in visible imagery as a bright area on an otherwise dark water area when winds are light and the water surface is smooth. The rougher the water, the more diffuse the glint pattern. 3, record 11, English, - sunglint
Record 11, Key term(s)
- sun glint
Record 11, French
Record 11, Domaine(s)
- Physique de l'atmosphère
- Soleil (Astronomie)
Record 11, Main entry term, French
- reflet solaire
1, record 11, French, reflet%20solaire
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 DEF
Réflexion spéculaire des rayons solaires directs sur un plan d’eau. 1, record 11, French, - reflet%20solaire
Record 11, Spanish
Record 11, Campo(s) temático(s)
- Física de la atmósfera
- Sol (Astronomía)
Record 11, Main entry term, Spanish
- destello solar
1, record 11, Spanish, destello%20solar
masculine noun
Record 11, Abbreviations, Spanish
Record 11, Synonyms, Spanish
Record 11, Textual support, Spanish
Record number: 11, Textual support number: 1 DEF
Reflexión especular de los rayos solares directos sobre una superficie de agua. 1, record 11, Spanish, - destello%20solar
Record 12 - internal organization data 2000-11-24
Record 12, English
Record 12, Subject field(s)
- Lamp Components
- Lighting
- Electrical Engineering
- Lasers and Masers
Record 12, Main entry term, English
- specular reflector
1, record 12, English, specular%20reflector
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 CONT
That part of a luminaire designed to reflect the luminous flux of the lamps in required directions by means of specular reflection. 2, record 12, English, - specular%20reflector
Record 12, French
Record 12, Domaine(s)
- Éléments de lampes
- Éclairage
- Électrotechnique
- Masers et lasers
Record 12, Main entry term, French
- réflecteur spéculaire
1, record 12, French, r%C3%A9flecteur%20sp%C3%A9culaire
correct, masculine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
L'élément servant à réfléchir la lumière est un réflecteur spéculaire ou diffus, caractérisé par ses qualités de réflexion et d’absorption. 2, record 12, French, - r%C3%A9flecteur%20sp%C3%A9culaire
Record 12, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2000-11-24
Record 13, English
Record 13, Subject field(s)
- Lasers and Masers
- Lighting
Record 13, Main entry term, English
- diffuse reflector
1, record 13, English, diffuse%20reflector
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
- Lambertian reflector 2, record 13, English, Lambertian%20reflector
correct, less frequent
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
Ideal diffuse reflectors reflect light according to Lambert's cosine law. Lambert's law states that the reflected energy from a small surface area in a particular direction is proportional to the cosine of the angle between that direction and the surface normal. 2, record 13, English, - diffuse%20reflector
Record 13, French
Record 13, Domaine(s)
- Masers et lasers
- Éclairage
Record 13, Main entry term, French
- réflecteur diffus
1, record 13, French, r%C3%A9flecteur%20diffus
correct, masculine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
L'élément servant à réfléchir la lumière est un réflecteur spéculaire ou diffus, caractérisé par ses qualités de réflexion. 1, record 13, French, - r%C3%A9flecteur%20diffus
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 1999-12-20
Record 14, English
Record 14, Subject field(s)
- Foundry Practice
- Electrometallurgy
Record 14, Main entry term, English
- mat finish
1, record 14, English, mat%20finish
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
A uniform finish of fine texture virtually lacking specular reflectivity. 1, record 14, English, - mat%20finish
Record number: 14, Textual support number: 1 OBS
Term and definition standardized by ISO. 2, record 14, English, - mat%20finish
Record 14, French
Record 14, Domaine(s)
- Fonderie
- Électrométallurgie
Record 14, Main entry term, French
- finition mate
1, record 14, French, finition%20mate
correct, feminine noun, standardized
Record 14, Abbreviations, French
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 DEF
Finition uniforme, de texture fine, manquant pratiquement de réflexion spéculaire. 1, record 14, French, - finition%20mate
Record number: 14, Textual support number: 1 OBS
Terme et définition normalisés par l’ISO. 2, record 14, French, - finition%20mate
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 1999-03-23
Record 15, English
Record 15, Subject field(s)
- Optical Glass
Record 15, Main entry term, English
- polishing
1, record 15, English, polishing
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
Record 15, Textual support, English
Record 15, French
Record 15, Domaine(s)
- Verres d'optique
Record 15, Main entry term, French
- polissage
1, record 15, French, polissage
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
Record 15, Textual support, French
Record number: 15, Textual support number: 1 DEF
Étape finale du surfaçage au cours de laquelle le verre devient lisse avec une transmission à la lumière régulière(et non plus aléatoire) et une réflexion spéculaire régulière(et non plus diffuse). 1, record 15, French, - polissage
Record number: 15, Textual support number: 1 OBS
Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997. 2, record 15, French, - polissage
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 1998-10-27
Record 16, English
Record 16, Subject field(s)
- Medical and Surgical Equipment
- The Eye
Record 16, Main entry term, English
- specular microscope
1, record 16, English, specular%20microscope
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
[The] specular microscope enables the technician to count the endothelial cells of the cornea via computer and provide a picture to the surgeon. 1, record 16, English, - specular%20microscope
Record 16, French
Record 16, Domaine(s)
- Équipement médico-chirurgical
- Oeil
Record 16, Main entry term, French
- microscope spéculaire
1, record 16, French, microscope%20sp%C3%A9culaire
correct, masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
Record 16, Textual support, French
Record number: 16, Textual support number: 1 DEF
Microscope qui utilise la réflexion spéculaire pour examiner les différentes couches de la cornée et en particulier pour observer et photographier l'endothélium. 2, record 16, French, - microscope%20sp%C3%A9culaire
Record number: 16, Textual support number: 1 OBS
Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997. 3, record 16, French, - microscope%20sp%C3%A9culaire
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 1998-04-16
Record 17, English
Record 17, Subject field(s)
- Foundry Practice
- Electrometallurgy
Record 17, Main entry term, English
- dull finish
1, record 17, English, dull%20finish
correct, standardized
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 DEF
A finish virtually lacking both diffuse and specular reflectance. 1, record 17, English, - dull%20finish
Record number: 17, Textual support number: 1 OBS
Term and definition standardized by ISO. 2, record 17, English, - dull%20finish
Record 17, French
Record 17, Domaine(s)
- Fonderie
- Électrométallurgie
Record 17, Main entry term, French
- finition terne
1, record 17, French, finition%20terne
correct, feminine noun, standardized
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, Textual support number: 1 DEF
Finition manquant pratiquement à la fois de réflexion diffuse et spéculaire. 1, record 17, French, - finition%20terne
Record number: 17, Textual support number: 1 OBS
Terme et définition normalisés par l’ISO. 2, record 17, French, - finition%20terne
Record 17, Spanish
Record 17, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: