diffusion

Noun
  1. (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 (synset 113486733)
    referred to in: natural philosophy, physics - the science of matter and energy and their interactions
    is a type of: action, activity, natural action, natural process - a process existing in or produced by nature (rather than by the intent of human beings)
    subtypes:
    • osmosis - (biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
    • permeation, pervasion, suffusion - the process of permeating or infusing something with a substance
    • transport - an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
  2. The spread of social institutions (and myths and skills) from one society to another (synset 107346200)
    referred to in: mythology - myths collectively; the body of stories associated with a culture or institution or person
    is a type of: spread, spreading - process or result of distributing or extending over a wide expanse of space
  3. The property of being diffused or dispersed (synset 105095263)
    is a type of: dispersion, distribution - the spatial or geographic property of being scattered about over a range, area, or volume
    same as: dissemination
  4. The act of dispersing or diffusing something (synset 100369400)
    "the dispersion of the troops"; "the diffusion of knowledge"
    is a type of: spread, spreading - act of extending over a wider scope or expanse of space or time
    subtypes: crop-dusting, spraying - the dispersion of fungicides or insecticides or fertilizer on growing crops (often from a low-flying aircraft)
    same as: dispersal, dispersion, dissemination

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