Ascidium

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ascidium \As*cid"i*um\ ([a^]s*s[i^]d"[i^]*[u^]m), n.; pl.
     {Ascidia} (-[.a]). [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).


        [1913 Webster]
  
     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.
        [1913 Webster]