n. (Zool.) One of the Oscines, or singing birds. [ 1913 Webster ]
n. (Zool.) Any one of numerous species of dipterous flies of the family
☞ Some, whose larvae live in the stalks, are very destructive to barley, wheat, and rye; others, as the barley fly (Oscinis frit), destroy the heads of grain. [ 1913 Webster ]
n. [ Gr. &unr_; bladder, pouch. ] (Zool.) One of the Ascidioidea, or in a more general sense, one of the Tunicata. Also as an adj. [ 1913 Webster ]