英语释义
1. a tapeworm larva that consists of a fluid-filled sac containing an invaginated scolex and is situated in the tissues of an intermediate host
2. a tapeworm larva that consists of a fluid-filled sac containing an invaginated scolex, is situated in the tissues of an intermediate host, and is capable of developing into an adult tapeworm when eaten by a suitable definitive host — called also bladder worm, measle