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Ascidioidea is a 11 letter word which starts with the letter A and ends with the letter A for which we found 1 definitions.

(n. pl.) A group of Tunicata often shaped like a two-necked bottle. The group includes social and compound species. The gill is a netlike structure within the oral aperture. The integument is usually leathery in texture. See Illustration in Appendix.
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