| branched calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
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| bronchial calculus | A hard concretion in a bronchus or bronchial tube. Synonym: bronchial calculus. Origin: broncho-+ G. Lithos, stone (05 Mar 2000) |
| calculus | A calcium salt concretion which forms on your teeth. Calculus deposits form on the teeth in areas which you do not floss or brush. If these concretions are left to build up on the tooth enamel, they will irritate the gum tissue, push it away from the tooth and promote progressive bone loss. Eventually the teeth can loosen and fall out. These deposits can be removed by a dentist or a dental hygienist on an annual to biannual basis. (renal) A solid concretion or stone which forms within the urinary tract (kidney). (27 Sep 1997) |
| calculus I | An abnormal concretion occurring within the animal body and usually composed of mineral salts. (18 Nov 1997) |
| calculus II | <dentistry> A hard, yellowish to brownish black deposit or teeth formed largely through the mineralisation of dead bacteria in dental plaques by the calcium salts in salivary secretions and subgingival transudates. Synonym: tartar. (18 Nov 1997) |
| Calculus Surface Index | An index that measures only dental calculus, used for evaluating new calculus formation within a large group of test subjects. (05 Mar 2000) |
| pancreatic calculus | A concretion, usually multiple, in the pancreatic duct, associated with chronic pancreatitis. Synonym: pancreatolith, pancreolith. (05 Mar 2000) |
| gastric calculus | <zoology> See Crab's eyes, under Crab. Origin: Gastro- + -lith. Source: Websters Dictionary (01 Mar 1998) |
| mammary calculus | A concretion in one of the ducts of the breast. (05 Mar 2000) |
| Marginal Line Calculus Index | An index which scores supragingival calculus found in cervical areas paralleling marginal gingiva. (05 Mar 2000) |
| vesical calculus | A urinary calculus formed or retained in the bladder. Synonym: cystolith. (05 Mar 2000) |
| matrix calculus | A yellowish-white to light tan urinary calculus containing calcium salts, with the consistency of putty; composed chiefly of an organic matrix consisting of a mucoprotein and a sulfated mucopolysaccharide, and usually associated with chronic infection. (05 Mar 2000) |
| renal calculus | A calculus occurring within the kidney collecting system. Synonym: nephrolith. (05 Mar 2000) |
| cerebral calculus | A concretion in the brain or one of its ventricles. Synonym: cerebral calculus. Origin: encephalo-+ G. Lithos, stone (05 Mar 2000) |
| metabolic calculus | A stone, usually a renal stone, caused by a metabolic abnormality resulting in increased excretion of a substance of low solubility in urine, such as urate or cystine. (05 Mar 2000) |