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

Cnida :: Cnida (n.) One of the peculiar stinging, cells found in Coelenterata; a nematocyst; a lasso cell..
Measles :: Measles (n.) The larvae of any tapeworm (Taenia) in the cysticerus stage, when contained in meat. Called also bladder worms..
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..
Cystic :: Cystic (a.) Containing cysts; cystose; as, cystic sarcoma..
Polycystid :: Polycystid (a.) Pertaining to the Polycystidea, or the Polycystina..
Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..
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..
Comedo :: Comedo (n.) A small nodule or cystic tumor, common on the nose, etc., which on pressure allows the escape of a yellow wormlike mass of retained oily secretion, with a black head (dirt)..
Aerocyst :: Aerocyst (n.) One of the air cells of algals.
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..
Porpita :: Porpita (n.) A genus of bright-colored Siphonophora found floating in the warmer parts of the ocean. The individuals are round and disk-shaped, with a large zooid in the center of the under side, surrounded by smaller nutritive and reproductive zooids, and by slender dactylozooids near the margin. The disk contains a central float, or pneumatocyst..
Incyst :: Incyst (v. t.) See Encyst.
Cholecystotomy :: Cholecystotomy (n.) The operation of making an opening in the gall bladder, as for the removal of a gallstone..
Cyst :: 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..
Cholecystis :: Cholecystis (n.) The gall bladder.
Blastocyst :: Blastocyst (n.) The germinal vesicle.
Cysticerce :: Cysticerce (n.) Alt. of Cysticercu.
Cystidean :: Cystidean (n.) One of the Cystidea.
Cist :: Cist (n.) See Cyst.
Macrocystis :: Macrocystis (n.) An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels..
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