Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A larval entozoön in the form of a subglobular or oval vesicle, or hydatid, 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.

from the GNU version of the Collaborative International Dictionary of English

  • n. A larval entozoön in the form of a subglobular or oval vesicle, or hydatid, 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.

from The Century Dictionary and Cyclopedia

  • n. A hydatid; a member of a supposed genus Acephalocystis, instituted by Hunter for the hydatid or encysted stage of Tænia echinococcus. See Tænia.
  • n. A sterile echinococcus cyst.

Etymologies

From Ancient Greek ἀκέφαλος (akephalos, "headless") + κύστις (kustis, "bladder") (Wiktionary)

Examples

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