- An abnormal concretion occurring mostly in the urinary and biliary tracts, usually composed of mineral salts. Also called stones.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- 1: A concretion usually of mineral salts around organic material found especially in hollow organs or ducts.
2: A concretion on teeth: tartar.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.