Definition of cyst

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Cyst (n.) A small capsule or sac of the kind in which many immature entozoans exist in the tissues of living animals; also, a similar form in Rotifera, etc..

Lern More About Cyst

Blastocyst :: Blastocyst (n.) The germinal vesicle.
Heterocyst :: Heterocyst (n.) A cell larger than the others, and of different appearance, occurring in certain algae related to nostoc..
Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..
Cysticercus :: Cysticercus (n.) 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)..
Cystine :: Cystine (n.) A white crystalline substance, C3H7NSO2, containing sulphur, occuring as a constituent of certain rare urinary calculi, and occasionally found as a sediment in urine..
Cisted :: Cisted (a.) Inclosed in a cyst. See Cysted.
Ctenocyst :: Ctenocyst (n.) An organ of the Ctenophora, supposed to be sensory..
Cystocarp :: Cystocarp (n.) A minute vesicle in a red seaweed, which contains the reproductive spores..
Cyst :: Cyst (n.) A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.
Comedo :: Comedo (n.) A small nodule or cystic tumor, common on the nose, etc., which on pressure allows the escape of a yellow wormlike mass of retained oily secretion, with a black head (dirt)..
Polycystidea :: Polycystidea (n. pl.) A division of Gregarinae including those that have two or more internal divisions of the body.
Ranula :: Ranula (n.) A cyst formed under the tongue by obstruction of the duct of the submaxillary gland.
Melicerous :: Melicerous (a.) Consisting of or containing matter like honey; -- said of certain encysted tumors.
Lithocyst :: Lithocyst (n.) A sac containing small, calcareous concretions (otoliths). They are found in many Medusae, and other invertebrates, and are supposed to be auditory organs..
Acephalocyst :: Acephalocyst (n.) A larval entozoon 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..
Vesicle :: Vesicle (n.) A bladderlike vessel; a membranous cavity; a cyst; a cell.
Cyst :: Cyst (n.) In old authors, the urinary bladder, or the gall bladder..
Encystment :: Encystment (n.) A process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc..
Cystose :: Cystose (a.) Containing, or resembling, a cyst or cysts; cystic; bladdery..
Zoocyst :: Zoocyst (n.) A cyst formed by certain Protozoa and unicellular plants which the contents divide into a large number of granules, each of which becomes a germ..
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