oxalate calculus

calculus /cal·cu·lus/ (kal´ku-lus) pl. cal´culi   [L.] an abnormal concretion, usually composed of mineral salts, occurring within the animal body.cal´culous

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biliary calculus  gallstone.

dental calculus  calcium phosphate and carbonate, with organic matter, deposited on tooth surfaces.

lung calculus  one formed in the bronchi by accretion about an inorganic nucleus, or from calcified portions of lung tissue or adjacent lymph nodes.

oxalate calculus  a urinary calculus made of calcium oxalate; some have tiny sharp spines and others are smooth.

renal calculus  one in the kidney.

salivary calculus 

1. sialolith.

2. supragingival c.

struvite calculus  a urinary calculus of crystals of struvite (magnesium ammonium phosphate).

supragingival calculus  that covering the coronal surface of the tooth to the crest of the gingival margin.

urinary calculus  one in any part of the urinary tract.

uterine calculus  uterolith; a concretion in the uterus.

vesical calculus  one in the urinary bladder.

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oxalate calculus

n.

A hard urinary calculus composed of calcium oxalate; it can be smooth or covered with minute sharp spines.