n. 囊, 包虫

[医] 囊, 棘球囊, 棘球蚴囊, 包虫囊

[ noun ]
cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)
<noun.state>

Hydatid \Hy"da*tid\, n. [Gr. ?, ?, a watery vesicle under the
upper eyelid, fr. "y`dwr, "y`datos, water: cf. F. hydatide.]
(Zo["o]l.)
A membranous sac or bladder filled with a pellucid fluid,
found in various parts of the bodies of animals, but
unconnected with the tissues. It is usually formed by
parasitic worms, esp. by larval tapeworms, as Echinococcus
and C[oe]nurus. See these words in the Vocabulary.

{Hydatid of Morgagni} (Anat.), one of the small pedunculated
bodies found between the testicle and the head of the
epididymis, and supposed to be a remnant of the
M["u]llerian duct.

Cysticerce \Cys"ti*cerce\ (s?s"t?-s?rs), Cysticercus
\Cys`ti*cer"cus\ (-s?r"k?s), n. [NL. cysticercus, fr. Gr. ????
bladder + ke`rkos tail: cf. F. cysticerque.] (Zo["o]l.)
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).

Note: 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}.