Definition of cyst

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Cyst (n.) A pouch or sac without opening, usually membranous and containing morbid matter, which is accidentally developed in one of the natural cavities or in the substance of an organ..

Lern More About Cyst

Cystoidea :: Cystoidea (n.) Same as Cystidea.
Ctenocyst :: Ctenocyst (n.) An organ of the Ctenophora, supposed to be sensory..
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..
Trichocyst :: Trichocyst (n.) A lasso cell.
Encystment :: Encystment (n.) A process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc..
Polycystine :: Polycystine (a.) Pertaining to the Polycystina.
Macrocystis :: Macrocystis (n.) An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels..
Cystolithic :: Cystolithic (a.) Relating to stone in the bladder.
Polycystine :: Polycystine (n.) One of the Polycystina.
Endocyst :: Endocyst (n.) The inner layer of the cells of Bryozoa.
Crinoidea :: Crinoidea (n. pl.) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula..
Cystidea :: Cystidea (n. pl.) An order of Crinoidea, mostly fossils of the Paleozoic rocks. They were usually roundish or egg-shaped, and often unsymmetrical; some were sessile, others had short stems..
Cyst :: Cyst (n.) A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.
Cyst :: Cyst (n.) One of the bladders or air vessels of certain algae, as of the great kelp of the Pacific, and common rockweeds (Fuci) of our shores..
Cystis :: Cystis (n.) A cyst. See Cyst.
Redia :: Redia (n.) A kind of larva, or nurse, which is prroduced within the sporocyst of certain trematodes by asexual generation. It in turn produces, in the same way, either another generation of rediae, or else cercariae within its own body. Called also proscolex, and nurse. See Illustration in Appendix..
Cysticule :: Cysticule (n.) An appendage of the vestibular ear sac of fishes.
Atheroma :: Atheroma (n.) An encysted tumor containing curdy matter.
Hepatocystic :: Hepatocystic (a.) Of or pertaining to the liver and gall bladder; as, the hepatocystic ducts..
Ranula :: Ranula (n.) A cyst formed under the tongue by obstruction of the duct of the submaxillary gland.
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