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diffusionism

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WordReference Random House Unabridged Dictionary of American English © 2026

dif•fu•sion•ism n. [Anthropol.]

Anthropology, Sociologythe theory or principle that diffusion is the main force in cultural innovation and change.

diffusion + -ism 1935–40

dif•fu′sion•ist, n., adj.

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'diffusionism' also found in these entries (note: many are not synonyms or translations):

culture diffusion

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