diffusivity

[ dif-yoo-siv-i-tee ]
/ ˌdɪf yʊˈsɪv ɪ ti /

noun Physics.

the property of a substance indicative of the rate at which a thermal disturbance, as a rise in temperature, will be transmitted through the substance.

Origin of diffusivity

First recorded in 1875–80; diffusive + -ity

Words nearby diffusivity

diffusion hypoxia, diffusion line, diffusion respiration, diffusionism, diffusive, diffusivity, diffusor, diflorasone diacetate, difluence, diflunisal, difunctional

Example sentences from the Web for diffusivity

  • Taking a foot as the unit of length, and a year as the unit of time, we find the diffusivity of the surface strata to be 400.

    Lord Kelvin |Andrew Gray

British Dictionary definitions for diffusivity

diffusivity
/ (ˌdɪfjuːˈsɪvɪtɪ) /

noun

a measure of the ability of a substance to transmit a difference in temperature; expressed as the thermal conductivity divided by the product of specific heat capacity and density
physics
  1. the ability of a substance to permit or undergo diffusion
  2. another name for diffusion coefficient
another name for diffusion (def. 5)