Definition of cyst

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Cyst (n.) A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.

Lern More About Cyst

Encystment :: Encystment (n.) A process by which many internal parasites, esp. in their larval states, become inclosed within a cyst in the muscles, liver, etc. See Trichina..
Aerocyst :: Aerocyst (n.) One of the air cells of algals.
Endocyst :: Endocyst (n.) The inner layer of the cells of Bryozoa.
Cystitis :: Cystitis (n.) Inflammation of the bladder.
Polycystidea :: Polycystidea (n. pl.) A division of Gregarinae including those that have two or more internal divisions of the body.
Melicerous :: Melicerous (a.) Consisting of or containing matter like honey; -- said of certain encysted tumors.
Sporogenesis :: Sporocyst (n.) Any protozoan when it becomes encysted produces germs by sporulation.
Hepatocystic :: Hepatocystic (a.) Of or pertaining to the liver and gall bladder; as, the hepatocystic ducts..
Cystic :: Cystic (a.) Pertaining to, or contained in, a cyst; esp., pertaining to, or contained in, either the urinary bladder or the gall bladder..
Incyst :: Incyst (v. t.) See Encyst.
Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..
Polycystina :: Polycystina (n. pl.) A division of Radiolaria including numerous minute marine species. The skeleton is composed of silica, and is often very elegant in form and sculpture. Many have been found in the fossil state..
Cystoidean :: Cystoidean (n.) Same as Cystidean.
Cystoidea :: Cystoidea (n.) Same as Cystidea.
Polycystid :: Polycystid (n.) One of the Polycystidea.
Echinococcus :: Echinococcus (n.) A parasite of man and of many domestic and wild animals, forming compound cysts or tumors (called hydatid cysts) in various organs, but especially in the liver and lungs, which often cause death. It is the larval stage of the Taenia echinococcus, a small tapeworm peculiar to the dog..
Heterocyst :: Heterocyst (n.) A cell larger than the others, and of different appearance, occurring in certain algae related to nostoc..
Encyst :: Encyst (v. t.) To inclose in a cyst.
Ranula :: Ranula (n.) A cyst formed under the tongue by obstruction of the duct of the submaxillary gland.
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..
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