ascidium

英[ә'sidiәm]

n. 瓶子状器官, 囊状器官

n. A pitcher-shaped, or flask-shaped, organ or appendage of\n a plant, as the leaves of the pitcher plant, or the little bladderlike\n traps of the bladderwort (Utricularia).\nn. A genus of simple ascidians, which formerly included most\n of the known species. It is sometimes used as a name for the\n Ascidioidea, or for all the Tunicata.