ascidium

  1. Noun.  (botany) A pitcher-shaped or flask-shaped organ or appendage of a plant.
  2. Noun.  (zoology) One of a genus of simple ascidians, which formerly included most of the known species; sometimes used as a name for the Ascidioidea, or for all the Tunicata.

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This entry was last updated on RefTopia from its source on 3/20/2012.