bladder worm

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The bladderlike, encysted larva of the tapeworm that is characteristic of the cysticercus stage.

from The Century Dictionary.

• noun A tapeworm in its cystic stage; a hydatid or scolex. See cystic, and cut under Tænia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun encysted saclike larva of the tapeworm