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

Myxocystodea :: Myxocystodea (n. pl.) A division of Infusoria including the Noctiluca. See Noctiluca.
Nematocyst :: Nematocyst (n.) A lasso cell, or thread cell. See Lasso cell, under Lasso..
Polycystine :: Polycystine (a.) Pertaining to the Polycystina.
Urocyst :: Urocyst (n.) The urinary bladder.
Cystotomy :: Cystotomy (n.) The act or practice of opening cysts; esp., the operation of cutting into the bladder, as for the extraction of a calculus..
Somatocyst :: Somatocyst (n.) A cavity in the primary nectocalyx of certain Siphonophora. See Illust. under Nectocalyx.
Cystic :: Cystic (a.) Having the form of, or living in, a cyst; as, the cystic entozoa..
Sporocyst :: Sporocyst (n.) An asexual zooid, usually forming one of a series of larval forms in the agamic reproduction of various trematodes and other parasitic worms. The sporocyst generally develops from an egg, but in its turn produces other larvae by internal budding, or by the subdivision of a part or all of its contents into a number of minute germs. See Redia..
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)..
Sagittocyst :: Sagittocyst (n.) A defensive cell containing a minute rodlike structure which may be expelled. Such cells are found in certain Turbellaria.
Hyaline :: Hyaline (n.) The main constituent of the walls of hydatid cysts; a nitrogenous body, which, by decomposition, yields a dextrogyrate sugar, susceptible of alcoholic fermentation..
Cystidean :: Cystidean (n.) One of the Cystidea.
Cystoidea :: Cystoidea (n.) Same as Cystidea.
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..
Encystation :: Encystation (n.) Encystment.
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..
Polycystid :: Polycystid (n.) One of the Polycystidea.
Polycystid :: Polycystid (a.) Pertaining to the Polycystidea, or the Polycystina..
Sporogenesis :: Sporocyst (n.) Any protozoan when it becomes encysted produces germs by sporulation.
Nematocalyx :: Nematocalyx (n.) One of a peculiar kind of cups, or calicles, found upon hydroids of the family Plumularidae. They contain nematocysts. See Plumularia..
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