TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
DEFLECTION TEMPERATURE [8 records]
Record 1 - internal organization data 2013-04-03
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- Rheology
- Strength of Materials
- Plastic Materials
Record 1, Main entry term, English
- deflection temperature under load
1, record 1, English, deflection%20temperature%20under%20load
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- heat deflection temperature under load 3, record 1, English, heat%20deflection%20temperature%20under%20load
- heat deflection temperature 2, record 1, English, heat%20deflection%20temperature
- heat distortion temperature 1, record 1, English, heat%20distortion%20temperature
former designation, avoid, see observation
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The temperature at which a test specimen will deflect a given distance under a given load in flexure under specified conditions of test. 1, record 1, English, - deflection%20temperature%20under%20load
Record number: 1, Textual support number: 1 OBS
heat distortion temperature: Formerly, this property was called "heat distortiontemperature," a term that is now deprecated. 1, record 1, English, - deflection%20temperature%20under%20load
Record number: 1, Textual support number: 2 OBS
deflection temperature under load : term and definition standardized by the International Organization for Standardization(ISO). 4, record 1, English, - deflection%20temperature%20under%20load
Record 1, Key term(s)
- load deflection temperature
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Rhéologie
- Résistance des matériaux
- Matières plastiques
Record 1, Main entry term, French
- température de fléchissement sous charge
1, record 1, French, temp%C3%A9rature%20de%20fl%C3%A9chissement%20sous%20charge
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
- température de déformation à chaud 1, record 1, French, temp%C3%A9rature%20de%20d%C3%A9formation%20%C3%A0%20chaud
former designation, avoid, see observation, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Température à laquelle la flèche d'une éprouvette soumise à une charge en flexion donnée, dans des conditions d'essai spécifiées, atteint une valeur donnée. 1, record 1, French, - temp%C3%A9rature%20de%20fl%C3%A9chissement%20sous%20charge
Record number: 1, Textual support number: 1 OBS
température de déformation à chaud : Anciennement, cette propriété était désignéecomme «température de déformation à chaud», terme qui est désormais à éviter. 1, record 1, French, - temp%C3%A9rature%20de%20fl%C3%A9chissement%20sous%20charge
Record number: 1, Textual support number: 2 OBS
température de fléchissement sous charge : terme et définition normalisés par l'Organisation internationale de normalisation (ISO). 2, record 1, French, - temp%C3%A9rature%20de%20fl%C3%A9chissement%20sous%20charge
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Medición y análisis (Ciencias)
- Reología
- Resistencia de los materiales
- Materiales plásticos
Record 1, Main entry term, Spanish
- temperatura de deflexión bajo carga
1, record 1, Spanish, temperatura%20de%20deflexi%C3%B3n%20bajo%20carga
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- temperatura de distorsión por calor 1, record 1, Spanish, temperatura%20de%20distorsi%C3%B3n%20por%20calor
avoid, see observation
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Temperatura a la cual un espécimen de ensayo se dobla determinada distancia bajo una carga dada, en condiciones de ensayo especificadas. 1, record 1, Spanish, - temperatura%20de%20deflexi%C3%B3n%20bajo%20carga
Record number: 1, Textual support number: 1 OBS
Esta propiedad se llamaba temperatura de distorsión por calor, un término que ahora está en desuso. 1, record 1, Spanish, - temperatura%20de%20deflexi%C3%B3n%20bajo%20carga
Record 2 - internal organization data 2011-11-18
Record 2, English
Record 2, Subject field(s)
- Climatology
- Aircraft Piloting and Navigation
Record 2, Main entry term, English
- orographic effect
1, record 2, English, orographic%20effect
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- terrain effect 2, record 2, English, terrain%20effect
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The effect that the varying topography has on atmospheric circulations. 3, record 2, English, - orographic%20effect
Record number: 2, Textual support number: 1 OBS
Deflection of air flow by mountains lifts air, resulting in cloud formation. Mountains also block or disturb atmospheric circulations and are regions of Earth-atmosphere momentum transfer. Topography also has an orographic effect on climate by influencing precipitation and temperature. 3, record 2, English, - orographic%20effect
Record 2, French
Record 2, Domaine(s)
- Climatologie
- Pilotage et navigation aérienne
Record 2, Main entry term, French
- effet orographique
1, record 2, French, effet%20orographique
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Modification, due au relief, de la circulation de l'air et des caractéristiques du temps. 2, record 2, French, - effet%20orographique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Climatología
- Pilotaje y navegación aérea
Record 2, Main entry term, Spanish
- efecto orográfico
1, record 2, Spanish, efecto%20orogr%C3%A1fico
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2005-02-18
Record 3, English
Record 3, Subject field(s)
- Weather Stations and Meteorological Instruments and Equipment
Record 3, Main entry term, English
- Michaelson actinograph
1, record 3, English, Michaelson%20actinograph
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A pyrheliometer of the bimetallic type used to measure the intensity of direct solar radiation. 2, record 3, English, - Michaelson%20actinograph
Record number: 3, Textual support number: 1 OBS
The radiation is measured in terms of the angular deflection of a blackened bimetallic strip that is exposed to the direct solar beams. In its original form the instrument was also responsive to ambient temperature variations. However, modifications have been introduced that eliminate this source of error. 2, record 3, English, - Michaelson%20actinograph
Record 3, French
Record 3, Domaine(s)
- Stations, instruments et équipements météorologiques
Record 3, Main entry term, French
- actinographe de Michaelson
1, record 3, French, actinographe%20de%20Michaelson
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Pyrhéliomètre [...] bimétallique employé pour mesurer et enregistrer l'intensité du rayonnement solaire direct. 1, record 3, French, - actinographe%20de%20Michaelson
Record number: 3, Textual support number: 1 OBS
On mesure le rayonnement en termes de la déflection angulaire d'une bande bimétallique noircie qui est exposée aux rayons directs du Soleil. 1, record 3, French, - actinographe%20de%20Michaelson
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2003-10-21
Record 4, English
Record 4, Subject field(s)
- Meteorology
- Thermodynamics
- Fluid Mechanics and Hydraulics (Physics)
Record 4, Main entry term, English
- forced convection
1, record 4, English, forced%20convection
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Convection caused by mechanical forces, such as those arising from air motion over a rough or sloping surface. 2, record 4, English, - forced%20convection
Record number: 4, Textual support number: 1 CONT
Convection... is a principal means of energy transfer. Distinction is made between free convection(gravitational or buoyant convection), motion caused only by density differences within the fluid; and forced convection, motion induced by mechanical forces such as deflection by a large-scale surface irregularity, turbulent flow caused by friction at the boundary of a fluid, or motion caused by any applied pressure gradient. Free and forced convection are not necessarily exclusive processes. On a windy day with overcast sky, the heat exchange between ground and air is an example of forced convection. On a sunny day with a little wind where the ground temperature rises, both kinds of convection take place. 3, record 4, English, - forced%20convection
Record 4, French
Record 4, Domaine(s)
- Météorologie
- Thermodynamique
- Mécanique des fluides et hydraulique (Physique)
Record 4, Main entry term, French
- convection forcée
1, record 4, French, convection%20forc%C3%A9e
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Convection d'une masse d'air causée par des forces mécaniques extérieures au système considéré. 2, record 4, French, - convection%20forc%C3%A9e
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Meteorología
- Termodinámica
- Mecánica de fluidos e hidráulica (Física)
Record 4, Main entry term, Spanish
- convección forzada
1, record 4, Spanish, convecci%C3%B3n%20forzada
feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Convección producida por fuerzas mecánicas tales como las debidas al movimiento del aire sobre una superficie rugosa o una pendiente. 1, record 4, Spanish, - convecci%C3%B3n%20forzada
Record 5 - internal organization data 2003-10-09
Record 5, English
Record 5, Subject field(s)
- Meteorology
- Thermodynamics
- Fluid Mechanics and Hydraulics (Physics)
Record 5, Main entry term, English
- free convection
1, record 5, English, free%20convection
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- natural convection 2, record 5, English, natural%20convection
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Convection caused by density differences within the air. 3, record 5, English, - free%20convection
Record number: 5, Textual support number: 1 CONT
Free convection is the rising of heated air and the sinking of cooler air without the need of external forces. 4, record 5, English, - free%20convection
Record number: 5, Textual support number: 2 CONT
Convection... is a principal means of energy transfer. Distinction is made between free convection(gravitational or buoyant convection), motion caused only by density differences within the fluid; and forced convection, motion induced by mechanical forces such as deflection by a large-scale surface irregularity, turbulent flow caused by friction at the boundary of a fluid, or motion caused by any applied pressure gradient. Free and forced convection are not necessarily exclusive processes. On a windy day with overcast sky, the heat exchange between ground and air is an example of forced convection. On a sunny day with a little wind where the ground temperature rises, both kinds of convection take place. 5, record 5, English, - free%20convection
Record 5, French
Record 5, Domaine(s)
- Météorologie
- Thermodynamique
- Mécanique des fluides et hydraulique (Physique)
Record 5, Main entry term, French
- convection libre
1, record 5, French, convection%20libre
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- convection naturelle 2, record 5, French, convection%20naturelle
feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Convection provoquée par des différences de densité de l'air. 1, record 5, French, - convection%20libre
Record number: 5, Textual support number: 1 CONT
[La] convection naturelle [...] est causée par le réchauffement diurne de la surface terrestre, résultant souvent en la formation de nuages Cumulus. 2, record 5, French, - convection%20libre
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Meteorología
- Termodinámica
- Mecánica de fluidos e hidráulica (Física)
Record 5, Main entry term, Spanish
- convección libre
1, record 5, Spanish, convecci%C3%B3n%20libre
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Convección producida por diferencias de densidad dentro del aire. 1, record 5, Spanish, - convecci%C3%B3n%20libre
Record 6 - internal organization data 2003-06-02
Record 6, English
Record 6, Subject field(s)
- Corporate Security
- Security Devices
- Fire Warning Devices
Record 6, Main entry term, English
- bimetallic heat detector
1, record 6, English, bimetallic%20heat%20detector
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
A heat detection device that uses a sensing element comprised of two metal strips having a different coefficient of expansion. The element deflects in opposite directions depending on the temperature to which it is exposed. Element deflection beyond a preset range results in an alarm. 2, record 6, English, - bimetallic%20heat%20detector
Record 6, French
Record 6, Domaine(s)
- Sécurité générale de l'entreprise
- Dispositifs de sécurité
- Alarme-incendie
Record 6, Main entry term, French
- détecteur thermique à bilame
1, record 6, French, d%C3%A9tecteur%20thermique%20%C3%A0%20bilame
masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- détecteur à bilame 2, record 6, French, d%C3%A9tecteur%20%C3%A0%20bilame
masculine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
[...] [le] détecteur à bilame utilise [parfois] deux métaux dont les caractéristiques de dilatation sont différentes. De minces lames des métaux sont reliées ensemble et une ou les deux extrémités sont connectées au circuit d'alarme. Sous l'effet de la chaleur, un des métaux se dilate plus rapidement que l'autre ce qui fait courber ou cambrer la lame. La courbure de la lame ouvre ou ferme le circuit d'alarme [...] Un autre type de détecteur à bilame utilise un disque déclencheur et un micro-contact [...] 2, record 6, French, - d%C3%A9tecteur%20thermique%20%C3%A0%20bilame
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2002-07-31
Record 7, English
Record 7, Subject field(s)
- Inks and Colour Reproduction (Graphic Arts)
Record 7, Main entry term, English
- ink-bearing surface
1, record 7, English, ink%2Dbearing%20surface
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
... indirect influences such as indentation(deflection) S and temperature T, which act on the ink-bearing surfaces, are of equal importance. 1, record 7, English, - ink%2Dbearing%20surface
Record 7, French
Record 7, Domaine(s)
- Encres et couleurs (Industrie graphique)
Record 7, Main entry term, French
- surface porteuse d'encre
1, record 7, French, surface%20porteuse%20d%27encre
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Les grandeurs participant indirectement à l'impression telles la pression S et la température T régnant sur les surfaces porteuses d'encre sont également importantes. 1, record 7, French, - surface%20porteuse%20d%27encre
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2001-02-22
Record 8, English
Record 8, Subject field(s)
- Plastics Industry
Record 8, Main entry term, English
- deflection temperature 1, record 8, English, deflection%20temperature
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, French
Record 8, Domaine(s)
- Industrie des plastiques
Record 8, Main entry term, French
- température de fléchissement
1, record 8, French, temp%C3%A9rature%20de%20fl%C3%A9chissement
feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record 8, Spanish
Record 8, 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: