diffusion

== English == === Etymology === Borrowed from Latin diffūsiō, from diffundō; can be decomposed as diffuse +‎ -ion. === Pronunciation === (Received Pronunciation) IPA(key): /dɪˈfjuː.ʒən/ (General American) IPA(key): /dɪˈfju.ʒən/ Rhymes: -uːʒən Hyphenation: dif‧fu‧sion === Noun === diffusion (countable and uncountable, plural diffusions) The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion. (physics) The scattering of light by reflection from a rough surface, or by passage through a translucent medium. (physics) The intermingling of the molecules of a fluid due to random thermal agitation. The spread of cultural or linguistic practices, or social institutions, in one or more communities. (marketing) The gradual spread and adoption of goods or services. (physics, weather) Exchange of airborne media between regions in space in an apparently random motion of a small scale. The movement of water vapor from regions of high concentration (high water vapor pressure) toward regions of lower concentration. ==== Derived terms ==== ==== Related terms ==== diffuseness diffusity ==== Translations ==== ==== See also ==== diffuser == French == === Etymology === Borrowed from Latin diffusiōnem. By surface analysis, diffuser +‎ -ion. === Pronunciation === IPA(key): /di.fy.zjɔ̃/ === Noun === diffusion f (plural diffusions) broadcasting, showing dissemination, diffusion (of culture, knowledge, etc.) circulation (of a news medium) (physics) diffusion ==== Derived terms ==== liste de diffusion ==== Related terms ==== diffus diffuser ==== Descendants ==== → Dutch: diffusie→ Indonesian: difusi → Romanian: difuziune → Turkish: difüzyon ==== See also ==== émission === Further reading === “diffusion”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012