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

Ectocyst :: Ectocyst (n.) The outside covering of the Bryozoa.
Polycystid :: Polycystid (n.) One of the Polycystidea.
Myxocystodea :: Myxocystodea (n. pl.) A division of Infusoria including the Noctiluca. See Noctiluca.
Incysted :: Incysted (a.) See Encysted.
Incyst :: Incyst (v. t.) See Encyst.
Cysted :: Cysted (a.) Inclosed in a cyst.
Cystocele :: Cystocele (n.) Hernia in which the urinary bladder protrudes; vesical hernia.
Sporogenesis :: Sporocyst (n.) Any protozoan when it becomes encysted produces germs by sporulation.
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..
Hypnocyst :: Hypnocyst (n.) A cyst in which some unicellular organisms temporarily inclose themselves, from which they emerge unchanged, after a period of drought or deficiency of food. In some instances, a process of spore formation seems to occur within such cysts..
Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..
Cisted :: Cisted (a.) Inclosed in a cyst. See Cysted.
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..
Cystoidean :: Cystoidean (n.) Same as Cystidean.
Cystolith :: Cystolith (n.) A concretion of mineral matter within a leaf or other part of a plant.
Encyst :: Encyst (v. t.) To inclose in a 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..
Somatocyst :: Somatocyst (n.) A cavity in the primary nectocalyx of certain Siphonophora. See Illust. under Nectocalyx.
Polycystine :: Polycystine (n.) One of the Polycystina.
Encystment :: Encystment (n.) A process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc..
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