- a diffusing or being diffused; specif.,
- a dissemination, as of news
- a scattering of light rays, as by reflection; also, the dispersion and softening of light, as by passage through frosted glass
- an intermingling of the molecules of liquids, gases, etc.
- wordiness; diffuseness
- Anthrop. the spread of a cultural or technological practice or innovation from one region or people to another, as by trade or conquest
Origin of diffusionMiddle English diffusioun from Classical Latin diffusio