Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A tendency to diffuse
  • n. a coefficient of diffusion; especially the amount of heat that passes through a given area in unit time

from the GNU version of the Collaborative International Dictionary of English

  • n. Tendency to become diffused; tendency, as of heat, to become equalized by spreading through a conducting medium.

from The Century Dictionary and Cyclopedia

  • n. The power or rate of diffusion.
  • n. Specifically, in physical, a physical constant expressing the rate of diffusion of a dissolved substance in the solvent.

Etymologies

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