Zoantharia

plural noun

Zo·​an·​thar·​ia

ˌzōənˈtha(a)rēə

: a subclass of Anthozoa that comprises forms with a hexamerous arrangement of the usually simple tentacles or septa or both and that includes most of the recent corals and sea anemones

Word History

Etymology

New Latin, from Zoanthus + -aria

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