Definition of concretion

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Concretion (n.) A rounded mass or nodule produced by an aggregation of the material around a center; as, the calcareous concretions common in beds of clay..

Lern More About Concretion

Accretion :: Accretion (n.) Concretion; coherence of separate particles; as, the accretion of particles so as to form a solid mass..
Eozoon :: Eozoon (n.) A peculiar structure found in the Archaean limestones of Canada and other regions. By some geologists it is believed to be a species of gigantic Foraminifera, but others consider it a concretion, without organic structure..
Node :: Node (n.) A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint..
Gravel :: Gravel (n.) A deposit of small calculous concretions in the kidneys and the urinary or gall bladder; also, the disease of which they are a symptom..
Geyserite :: Geyserite (n.) A loose hydrated form of silica, a variety of opal, deposited in concretionary cauliflowerlike masses, around some hot springs and geysers..
Tophus :: Tophus (n.) One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium..
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..
Lithofellic :: Lithofellic (a.) Pertaining to, or designating, a crystalline, organic acid, resembling cholic acid, found in the biliary intestinal concretions (bezoar stones) common in certain species of antelope..
Gallstone :: Gallstone (n.) A concretion, or calculus, formed in the gall bladder or biliary passages. See Calculus, n., 1..
Lithic :: Lithic (a.) Pertaining to the formation of uric-acid concretions (stone) in the bladder and other parts of the body; as, lithic diathesis..
Pearlstone :: Pearlstone (n.) A glassy volcanic rock of a grayish color and pearly luster, often having a spherulitic concretionary structure due to the curved cracks produced by contraction in cooling. See Illust. under Perlitic..
Phlebolith :: Phlebolith (n.) A small calcareous concretion formed in a vein; a vein stone.
Concretion :: Concretion (n.) A rounded mass or nodule produced by an aggregation of the material around a center; as, the calcareous concretions common in beds of clay..
Tabasheer :: Tabasheer (n.) A concretion in the joints of the bamboo, which consists largely or chiefly of pure silica. It is highly valued in the East Indies as a medicine for the cure of bilious vomitings, bloody flux, piles, and various other diseases..
Rhinolith :: Rhinolith (n.) A concretion formed within the cavities of the nose.
Concretional :: Concretional (a.) Concretionary.
Concreture :: Concreture (n.) A mass formed by concretion.
Chalkstone :: Chalkstone (n.) A chalklike concretion, consisting mainly of urate of sodium, found in and about the small joints, in the external ear, and in other situations, in those affected with gout; a tophus..
Enterolith :: Enterolith (n.) An intestinal concretion.
Calculus :: Calculus (n.) Any solid concretion, formed in any part of the body, but most frequent in the organs that act as reservoirs, and in the passages connected with them; as, biliary calculi; urinary calculi, etc..
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