As*cid"i*um (#), n.; pl. Ascidia (#). [NL., fr. ascus. See Ascus.]

1. Bot.

A pitcher-shaped, or flask-shaped, organ or appendage of a plant, as the leaves of the pitcher plant, or the little bladderlike traps of the bladderwort (Utricularia).

2. pl. Zool.

A genus of simple ascidians, which formerly included most of the known species. It is sometimes used as a name for the Ascidioidea, or for all the Tunicata.

 

© Webster 1913.

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