Definition from Wiktionary, the free dictionary
See also: Ascidium
ascidium (plural ascidia)
- (botany) A pitcher-shaped or flask-shaped organ or appendage of a plant.
- (zoology) One of the former genus Ascidium of simple ascidians, which formerly included most of the known species; sometimes used as a name for the Ascidiidae or for all the Tunicata, or Ascidiacea.