sand

sand

The fine granular particles of quartz and other crystalline rocks, or a gritty material resembling s. [A.S.]
brain s.corpora arenacea, under corpus
hydatid s.the scoleces of Echinococcus tapeworms in the fluid within a primary or daughter hydatid cyst.
intestinal s.minute calculi or gritty material occurring in feces, composed of soaps, bile pigment, cholesterol, magnesium salts, succinic acid, etc.
urinary s.multiple small calculous particles passed in the urine of patients with nephrolithiasis; each particle is usually too small to cause significant symptoms or to be identified as a true calculus.

 

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