synusia
noun
syn·usia
| \ sə̇ˈn(y)üzh(ē)ə, -zēə\
plural synusiae\ -z(h)ēˌē \
Definition of synusia
: a structural unit of a major ecological community characterized by relative uniformity of life-form or of height and usually constituting a particular stratum of that community
the herbaceous synusia of open forest
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