[ sist ]
/ sɪst /
Pathology. a closed, bladderlike sac formed in animal tissues, containing fluid or semifluid matter.
a bladder, sac, or vesicle.
- a sporelike cell with a resistant, protective wall.
- a cell or cavity enclosing reproductive bodies.
- a sac, usually spherical, surrounding an animal that has passed into a dormant condition.
- such a sac plus the contained animal.
- a capsule or resistant covering.
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Origin of cyst
1705–15; <New Latin cystis<Greek kýstis bag, pouch, the bladder; akin to kŷmacyma
Definition for cyst (2 of 3)
variant of cysto-, before a vowel: cystectomy.
Definition for cyst (3 of 3)
variant of cysto-, as final element in a compound word: statocyst.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for cyst (1 of 2)
/ (sɪst) /
pathol any abnormal membranous sac or blisterlike pouch containing fluid or semisolid material
anatomy any normal sac or vesicle in the body
a thick-walled protective membrane enclosing a cell, larva, or organism
Word Origin for cyst
C18: from New Latin cystis, from Greek kustis pouch, bag, bladder
British Dictionary definitions for cyst (2 of 2)
n combining form
indicating a bladder or sacotocyst
Word Origin for -cyst
from Greek kustis bladder
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
Medical definitions for cyst (1 of 2)
[ sĭst ]
An abnormal membranous sac containing a gaseous, liquid, or semisolid substance.
A sac or vesicle in the body.
A small capsulelike sac that encloses certain organisms in their dormant or larval stage.
Medical definitions for cyst (2 of 2)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for cyst
[ sĭst ]
An abnormal membranous sac in the body, containing a gaseous, liquid, or semisolid substance.
A small, capsulelike form of certain organisms that develops in response to adverse or extreme conditions. Under adverse conditions, for instance, dinoflagellates form nonmotile resting cysts that fall to the ocean or lake bottom and can remain there for years before reviving. Certain invertebrates, such as the water bear (phylum Tardigrada), also develop cysts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for cyst
[ (sist) ]
An abnormal saclike structure that develops in the body and is filled with fluid or semisolid material.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.