| calcifying odontogenic cyst | A mixed radiolucent-radiopaque lesion of the jaws with features of both a cyst and a solid neoplasm; characterised microscopically by an epithelial lining showing a palisaded layer of columnar basal cells, presence of ghost cell keratinization, dentinoid, and calcification. Synonym: calcifying and keratinizing odontogenic cyst, Gorlin cyst. (05 Mar 2000) |
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| calcigerous | Producing or carrying calcium salts. Origin: calcium + L. Gero, to bear (05 Mar 2000) |
| calcimedins | annexins, haem (18 Nov 1997) |
| calcimycin | <chemical> An ionophorous, polyether antibiotic from streptomyces chartreusensis. It binds and transports cations across membranes and uncouples oxidative phosphorylation while inhibiting atpase of rat liver mitochondria. The substance is used mostly as a biochemical tool to study the role of divalent cations in various biological systems. Pharmacological action: antibiotics, ionophores. Chemical name: 4-Benzoxazolecarboxylic acid, 5-(methylamino)-2-((3,9,11-trimethyl-8-(1-methyl-2-oxo-2-(1H-pyrrol-2-yl)ethyl)-1,7-dioxaspiro(5.5)undec-2-yl)methyl)-, (6S-(6alpha(2S*,3S*),8beta(R*),9beta,11alpha))- (12 Dec 1998) |
| calcination | <chemistry> The process of heating a solid below its melting point to break it down into another compound (for instance, heating calcium carbonate to send off carbon dioxide gas and create calcium oxide). (21 Mar 1998) |
| calcine | To expel water and volatile matter by heat. (05 Mar 2000) |
| calcined magnesia | <chemical> Magnesium oxide (mgo). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses. Pharmacological action: antacids, cathartic. Chemical name: Magnesium oxide (MgO) (12 Dec 1998) |
| calcineurin | <protein> Calmodulin stimulated protein phosphatase (EC 3.1.3.16), the major calmodulin binding protein in brain. Enzymic activity is inhibited by binding of immunophilin ligand complex (immunophilin alone does not bind) and therefore may play a part in the mechanism of action of cyclosporin A and FK506. Thought also to be involved in the control of sperm motility. (21 Mar 1998) |
| calcinosis | <dermatology> A condition which is characterised by the deposition of calcium in nodular foci in the body tissues. (21 Mar 1998) |
| calcinosis circumscripta | Localised deposits of calcium salts in the skin and subcutaneous tissues, usually surrounded by a zone of granulomatous inflammation; clinically, the lesions resemble the tophi of gout. (05 Mar 2000) |
| calcinosis cutis | A deposit of calcium in the skin; usually occurs secondary to a preexisting inflammatory, degenerative, or neoplastic dermatosis, and is frequently seen in scleroderma. Synonym: dystrophic calcinosis, skin stones. (05 Mar 2000) |
| calcinosis intervertebralis | Calcium deposit in vertebral disk. (05 Mar 2000) |
| calcinosis universalis | <dermatology> Diffuse deposits of calcium salts in the skin and subcutaneous tissues, connective tissue, and other sites. It may be associated with dermatomyositis, occurs more frequently in young persons, and is often fatal; serum levels of calcium and phosphorus are generally within normal limits. (05 Mar 2000) |
| calcinuric diabetes | <biochemistry> The excretion of abnormally large amounts of calcium in the urine, seen in cases of hyperparathyroidism. Origin: Gr. Ouron = urine (11 Jan 1998) |
| calciokinesis | Mobilization of stored calcium. Origin: calcium + G. Kinesis, motion (05 Mar 2000) |