faciation

noun

fa·​ci·​a·​tion

ˌfāshēˈāshən

plural -s

: a subdivision of an ecological association that is characterized by the codominance of two or more but not all the dominant forms of the association and that constitutes a community of considerable extent, its area usually being related to a climatic variation within the area of the association compare lociation

Word History

Etymology

Latin facies + English -ation

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