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ascidian

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ascidian

noun as·cid·i·an \ə-ˈsi-dē-ən\

Definition of ASCIDIAN

:  any of a class (Ascidiacea) of solitary or colonial sessile tunicates having an incurrent and excurrent siphon —called also sea squirt

Origin of ASCIDIAN

New Latin Ascidia, group comprising tunicates, from Ascidium, genus name, from Greek askidion, diminutive of askos wineskin, bladder
First Known Use: 1835

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