A*ceph"a*lo*cyst (#), n. [Gr. without a head + bladder.] Zool.

A larval entozoon in the form of a subglobular or oval vesicle, or hy datid, filled with fluid, sometimes found in the tissues of man and the lower animals; -- so called from the absence of a head or visible organs on the vesicle. These cysts are the immature stages of certain tapeworms. Also applied to similar cysts of different origin.

 

© Webster 1913.

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