| fossa of lacrimal gland | A hollow in the orbital plate of the frontal bone, formed by the overhanging margin and zygomatic process, lodging the lacrimal gland. Synonym: fossa glandulae lacrimalis, fossa of lacrimal gland. (05 Mar 2000) |
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| fossa of lacrimal sac | A fossa formed by the lacrimal bone and the frontal process of the maxilla, lodging the lacrimal sac. Synonym: fossa sacci lacrimalis. (05 Mar 2000) |
| apatite calculus | A calculus in which the crystalloid component consists of calcium fluorophosphate. (05 Mar 2000) |
| arthritic calculus | gouty tophus |
| biliary calculus | <gastroenterology, surgery> A solid formation in the gallbladder composed of cholesterol and bile salts. (27 Sep 1997) |
| blood calculus | An angiolith or concretion of coagulated blood. Synonym: hemic calculus. (05 Mar 2000) |
| 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) |
| 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) |