diffusion Meaning, Definition & Usage

  1. noun (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
  2. noun the spread of social institutions (and myths and skills) from one society to another
  3. noun the property of being diffused or dispersed
    dissemination.
  4. noun the act of dispersing or diffusing something
    dispersion; dissemination; dispersal.
    • the dispersion of the troops
    • the diffusion of knowledge

WordNet

Dif*fu"sion noun
Etymology
L. diffusio: cf. F. diffusion.
Definitions
  1. The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
    A diffusion of knowledge which has undermined superstition. Burke.
  2. (Physiol.) The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate. Syn. -- Extension; spread; propagation; circulation; expansion; dispersion.

Webster 1913