ˌsōs(h)ēˈāshən noun
( -s )
Etymology: Late Latin sociation-, sociatio union, association, from Latin sociatus (past participle) + -ion-, -io -ion
1. : a mode or process of social interaction whether associative or dissociative — compare formal sociology
2.
a. : an ecological association that is usually rather stable and of essentially uniform composition
b. : a community that is subject to seasonal variation