actinobranch

noun

ac·​tin·​o·​branch

ak-ˈti-nə-ˌbraŋk

variants or actinobranchia

¦ak-tə-(ˌ)nō-ˈbraŋ-kē-ə

plural -s

: a gill-like organ of certain Anthozoa

Word History

Etymology

New Latin actinobranchia, from actin- + branchia

First Known Use

circa 1901, in the meaning defined above

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