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

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..
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..
Nereocystis :: Nereocystis (n.) A genus of gigantic seaweeds.
Ctenocyst :: Ctenocyst (n.) An organ of the Ctenophora, supposed to be sensory..
Cystitis :: Cystitis (n.) Inflammation of the bladder.
Aerocyst :: Aerocyst (n.) One of the air cells of algals.
Radiolaria :: Radiolaria (n. pl.) Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina..
Cistic :: Cistic (a.) See Cystic.
Measles :: Measles (n.) The larvae of any tapeworm (Taenia) in the cysticerus stage, when contained in meat. Called also bladder worms..
Trichocyst :: Trichocyst (n.) A lasso cell.
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..
Cysticule :: Cysticule (n.) An appendage of the vestibular ear sac of fishes.
Nematocyst :: Nematocyst (n.) A lasso cell, or thread cell. See Lasso cell, under Lasso..
Monocystic :: Monocystic (a.) Of or pertaining to a division (Monocystidea) of Gregarinida, in which the body consists of one sac..
Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..
Ranula :: Ranula (n.) A cyst formed under the tongue by obstruction of the duct of the submaxillary gland.
Cystotome :: Cystotome (n.) A knife or instrument used in cystotomy.
Cysted :: Cysted (a.) Inclosed in a cyst.
Myxocystodea :: Myxocystodea (n. pl.) A division of Infusoria including the Noctiluca. See Noctiluca.
Incyst :: Incyst (v. t.) See Encyst.
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