TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

DIFFUSITY [1 record]

Record 1 2003-07-10

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Meteorology
DEF

A measure of the rate of diffusion of a conservative property or of contained matter ...

OBS

... in the atmosphere, it is several orders of magnitude greater for eddy motions (eddy diffusivity) than for molecular motions.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Météorologie
DEF

Mesure de la vitesse de diffusion d'une propriété conservative ou d'une matière contenue; [...]

OBS

[...] dans l'atmosphère, elle est plus grande (de plusieurs ordres de grandeur) pour les mouvements turbulents (diffusivité turbulente) que pour les mouvements moléculaires.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Meteorología
DEF

Medida de la velocidad de difusión de una propiedad conservativa o de partículas materiales inicialmente confinadas; [...]

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.

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