- a cyst with watery contents that is produced in humans and animals by a tapeworm in the larval state; cysticerus.
- a cystic vestige of an embryonic feature.
- Also hy·da·tid·i·nous. of or relating to a hydatid.
- containing or affected by hydatids.
Origin of hydatid
1675–85; < Greek hydatid- (stem of hydatís) watery vesicle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hydatid
Dr Leidy also obtained three hydatid cysts from a large monkey.Parasites
T. Spencer Cobbold
The compound scolex thus forms a sac or a group of sacs, the basis of hydatid tumors.
Of a more serious nature is the tape-worm embryo which produces the hydatid tumor.
The embryo tape-worm, once fixed in position, becomes the starting-point of a hydatid tumor.
Hydatid tumors occur in any of the organs of the body, but are more frequent in the liver than in all others together.
- a large bladder containing encysted larvae of the tapeworm Echinococcus: causes serious disease in man
- Also called: hydatid cyst a sterile fluid-filled cyst produced in man and animals during infestation by Echinococcus larval forms
C17: from Greek hudatis watery vesicle, from hudōr, hudat- water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A hydatid cyst.
- The encysted larva of Echinococcus granulosus.
- An abnormal vascular structure that is usually filled with fluid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.