{ Cys"ti*cerce (s?s"t?-s?rs), Cys`ti*cer"cus (-s?r"k?s), } n. [NL. cysticercus, fr. Gr. &?;&?;&?;&?; bladder + &?;&?;&?;&?; tail: cf. F. cysticerque.] (Zoöl.) The larval form of a tapeworm, having the head and neck of a tapeworm attached to a saclike body filled with fluid; -- called also bladder worm, hydatid, and measle (as, pork measle).

&fist; These larvae live in the tissues of various living animals, and, when swallowed by a suitable carnivorous animal, develop into adult tapeworms in the intestine. See Measles, 4, Tapeworm.