1. Deposition of lime or other insoluble calcium salts.
2. A process in which tissue or noncellular material in the body becomes hardened as the result of precipitates or larger deposits of insoluble salts of calcium (and also magnesium), especially calcium carbonate and phosphate (hydroxyapatite) normally occurring only in the formation of bone and teeth.
3. A dense opacity (less dense than metal, however) on a radiographic image.
Stedman’s Medical Dictionary © Wolters Kluwer Health. All rights reserved.