Actiniaria

plural noun

Ac·​tin·​i·​ar·​ia

¦ak-ˌti-nē-¦a-rē-ə,

-ˈer-ē-

: an order or suborder of Anthozoa (subclass Zoantharia) comprising the sea anemones which differ from the corals in forming no hard skeleton and in existing as separate individuals

Word History

Etymology

borrowed from New Latin, from Actinia actinia + -aria -aria entry 2

First Known Use

1856, in the meaning defined above

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