TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
DIFUSIVIDAD [5 records]
Record 1 - internal organization data 2014-05-23
Record 1, English
Record 1, Subject field(s)
- Thermodynamics
- Scientific Measurements and Analyses
Record 1, Main entry term, English
- thermal diffusivity
1, record 1, English, thermal%20diffusivity
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- thermometric conductivity 2, record 1, English, thermometric%20conductivity
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The ratio of the thermal conductivity of a substance to the product of its density and specific heat. 3, record 1, English, - thermal%20diffusivity
Record number: 1, Textual support number: 1 OBS
The SI [International System of Units] unit for this property is the square metre per second. 3, record 1, English, - thermal%20diffusivity
Record number: 1, Textual support number: 2 OBS
thermal diffusivity: term and definition standardized by ISO. 4, record 1, English, - thermal%20diffusivity
Record 1, French
Record 1, Domaine(s)
- Thermodynamique
- Mesures et analyse (Sciences)
Record 1, Main entry term, French
- diffusivité thermique
1, record 1, French, diffusivit%C3%A9%20thermique
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Rapport de la conductivité thermique d'une substance au produit de sa masse volumique par sa chaleur spécifique. 2, record 1, French, - diffusivit%C3%A9%20thermique
Record number: 1, Textual support number: 1 OBS
L'unité SI [Système international d'unités] pour cette caractéristique est le mètre carré par seconde. 2, record 1, French, - diffusivit%C3%A9%20thermique
Record number: 1, Textual support number: 2 OBS
Cette grandeur est fonction des variables d'état (température, pression [...]). 3, record 1, French, - diffusivit%C3%A9%20thermique
Record number: 1, Textual support number: 3 OBS
diffusivité thermique : terme et définition normalisés par l'ISO et l'AFNOR. 4, record 1, French, - diffusivit%C3%A9%20thermique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Termodinámica
- Medición y análisis (Ciencias)
Record 1, Main entry term, Spanish
- difusividad térmica
1, record 1, Spanish, difusividad%20t%C3%A9rmica
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Relación entre la conductividad térmica de una sustancia y el producto de su densidad y calor específico. 1, record 1, Spanish, - difusividad%20t%C3%A9rmica
Record number: 1, Textual support number: 1 OBS
La unidad SI [Sistema internacional de unidades] para esta propiedad es el metro cuadrado por segundo. 1, record 1, Spanish, - difusividad%20t%C3%A9rmica
Record 2 - internal organization data 2011-03-02
Record 2, English
Record 2, Subject field(s)
- Radiation Protection
Record 2, Main entry term, English
- diffusion coefficient
1, record 2, English, diffusion%20coefficient
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record 2, French
Record 2, Domaine(s)
- Radioprotection
Record 2, Main entry term, French
- coefficient de diffusion
1, record 2, French, coefficient%20de%20diffusion
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Protección contra la radiación
Record 2, Main entry term, Spanish
- coeficiente de difusión
1, record 2, Spanish, coeficiente%20de%20difusi%C3%B3n
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Coeficiente que expresa la difusividad de una materia. 1, record 2, Spanish, - coeficiente%20de%20difusi%C3%B3n
Record 3 - internal organization data 2008-11-25
Record 3, English
Record 3, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Scientific Measurements and Analyses
- Hydrology and Hydrography
Record 3, Main entry term, English
- hydraulic diffusivity
1, record 3, English, hydraulic%20diffusivity
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- diffusivity of an aquifer 2, record 3, English, diffusivity%20of%20an%20aquifer
- diffusivity 2, record 3, English, diffusivity
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The coefficient of transmissivity of an aquifer divided by its storage coefficient. 2, record 3, English, - hydraulic%20diffusivity
Record 3, French
Record 3, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Mesures et analyse (Sciences)
- Hydrologie et hydrographie
Record 3, Main entry term, French
- diffusivité
1, record 3, French, diffusivit%C3%A9
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- diffusivité hydraulique 2, record 3, French, diffusivit%C3%A9%20hydraulique
feminine noun
- diffusivité d'un aquifère 3, record 3, French, diffusivit%C3%A9%20d%27un%20aquif%C3%A8re
feminine noun
- piézo-transmissivité hydraulique 2, record 3, French, pi%C3%A9zo%2Dtransmissivit%C3%A9%20hydraulique
feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Coefficient de transmissivité de l'aquifère divisé par son coefficient d'emmagasinement. 3, record 3, French, - diffusivit%C3%A9
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Mecánica de fluidos e hidráulica (Física)
- Medición y análisis (Ciencias)
- Hidrología e hidrografía
Record 3, Main entry term, Spanish
- difusividad
1, record 3, Spanish, difusividad
feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- difusividad de un acuífero 1, record 3, Spanish, difusividad%20de%20un%20acu%C3%ADfero
feminine noun
- difusividad hidráulica 2, record 3, Spanish, difusividad%20hidr%C3%A1ulica
feminine noun
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Coeficiente de transmisividad de un acuífero dividido por su coeficiente de almacenamiento. 1, record 3, Spanish, - difusividad
Record 4 - internal organization data 2003-07-10
Record 4, English
Record 4, Subject field(s)
- Scientific Measurements and Analyses
- Meteorology
Record 4, Main entry term, English
- diffusity
1, record 4, English, diffusity
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A measure of the rate of diffusion of a conservative property or of contained matter ... 1, record 4, English, - diffusity
Record number: 4, Textual support number: 1 OBS
... in the atmosphere, it is several orders of magnitude greater for eddy motions (eddy diffusivity) than for molecular motions. 1, record 4, English, - diffusity
Record 4, French
Record 4, Domaine(s)
- Mesures et analyse (Sciences)
- Météorologie
Record 4, Main entry term, French
- diffusivité
1, record 4, French, diffusivit%C3%A9
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Mesure de la vitesse de diffusion d'une propriété conservative ou d'une matière contenue; [...] 1, record 4, French, - diffusivit%C3%A9
Record number: 4, Textual support number: 1 OBS
[...] dans l'atmosphère, elle est plus grande (de plusieurs ordres de grandeur) pour les mouvements turbulents (diffusivité turbulente) que pour les mouvements moléculaires. 1, record 4, French, - diffusivit%C3%A9
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Medición y análisis (Ciencias)
- Meteorología
Record 4, Main entry term, Spanish
- difusibilidad
1, record 4, Spanish, difusibilidad
feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Medida de la velocidad de difusión de una propiedad conservativa o de partículas materiales inicialmente confinadas; [...] 1, record 4, Spanish, - difusibilidad
Record number: 4, Textual support number: 1 OBS
[...] en la atmósfera, en el caso de movimientos turbulentos, es mayor en varios órdenes de magnitud(difusividad por vórtices) que cuando se trata de movimientos moleculares. 1, record 4, Spanish, - difusibilidad
Record 5 - internal organization data 2001-10-22
Record 5, English
Record 5, Subject field(s)
- Metrology and Units of Measure
- Fluid Mechanics and Hydraulics (Physics)
Record 5, Main entry term, English
- diffusion coefficient
1, record 5, English, diffusion%20coefficient
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- coefficient of diffusion 2, record 5, English, coefficient%20of%20diffusion
correct
- diffusivity 3, record 5, English, diffusivity
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
"Diffusivity": the rate at which molecules of a material diffuse through still air or water. 4, record 5, English, - diffusion%20coefficient
Record number: 5, Textual support number: 2 DEF
A factor of proportionality representing the amount of substance in grams diffusing across an area of one square centimeter through a unit concentration gradient in one second of time. 5, record 5, English, - diffusion%20coefficient
Record number: 5, Textual support number: 1 CONT
... the rate of diffusion of particles [in a liquid or gas] ... may be written as J = -D (delta x/delta c), where J is the flux in question, D the diffusion coefficient or diffusivity, and delta x/delta c is the gradient of concentration. 6, record 5, English, - diffusion%20coefficient
Record 5, French
Record 5, Domaine(s)
- Unités de mesure et métrologie
- Mécanique des fluides et hydraulique (Physique)
Record 5, Main entry term, French
- coefficient de diffusion
1, record 5, French, coefficient%20de%20diffusion
correct, masculine noun, standardized
Record 5, Abbreviations, French
Record 5, Synonyms, French
- diffusivité 2, record 5, French, diffusivit%C3%A9
correct, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
[...] la quantité d'un constituant i d'un mélange diffusé dans la direction z à travers une portion de plan de surface unitaire perpendiculaire à la direction de diffusion est proportionnelle au gradient de concentration dans cette direction: J = -D (delta C/delta z), où J représente le flux de diffusion dans la direction z (mole/cm carré . s), C la concentration du constituant i (mole/cm cube) et D un coefficient de proportionnalité appelé coefficient de diffusion, dont la valeur, pour la plupart des gaz, est comprise dans l'intervalle 0,1 à 1 cm carré/s. 3, record 5, French, - coefficient%20de%20diffusion
Record number: 5, Textual support number: 1 OBS
Le terme "coefficient de diffusion" est normalisé par l'AFNOR. 4, record 5, French, - coefficient%20de%20diffusion
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Metrología y unidades de medida
- Mecánica de fluidos e hidráulica (Física)
Record 5, Main entry term, Spanish
- coeficiente de difusión
1, record 5, Spanish, coeficiente%20de%20difusi%C3%B3n
correct, masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
- difusividad 2, record 5, Spanish, difusividad
feminine noun
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Peso de un material, en gramos, difundido a través de un área de un centímetro cuadrado en un segundo en un gradiente de concentración unidad. 2, record 5, Spanish, - coeficiente%20de%20difusi%C3%B3n
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
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: