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diffusion

dif·fu·sion

diffusion

pronunciation:
dih fyu zhn
part of speech: noun
definition 1: the spreading or wide scattering of something.
the diffusion of black culture throughout the North
synonyms:
dispersion, dissemination, permeation, spread
antonyms:
concentration
similar words:
distribution, scatter
definition 2: a spreading of light rays or other radiation by reflection from or by passing through an irregular surface.
synonyms:
permeation
similar words:
reflection
definition 3: a mixing of molecules of different substances, that results from random thermal motion.
similar words:
dispersion, distribution, spread
derivation: diffusional (adj.)