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WordReference Random House Unabridged Dictionary of American English © 2024al•cy•o•nar•i•an (al′sē ə nâr′ē ən),USA pronunciation n. - Invertebratesany anthozoan coelenterate of the subclass Alcyonaria, as corals and sea anemones, having the tentacles and other body parts in branches or segments of eight.
adj. - Invertebratesbelonging or pertaining to the Alcyonaria.
- Greek alkyón(ion) a type of coral named from its resemblance to the nest of the kingfisher (alkyó̄n) + Latin -āria -ary) + -an
- Neo-Latin Alcyonari(a) (
- 1875–80
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