**Calculus (disambiguation)** — Calculus is Latin for pebble, and has a number of meanings in English: In mathematics and computer science Calculus , in its most general sense, is any method or system of calculation. To modern theoreticians the answer to the question what is a… … Wikipedia

**triple phosphate calculus** — struvite c … Medical dictionary

**Calculus (dental)** — Heavy staining and calculus deposits exhibited on the lingual surface of the mandibular anterior teeth, along the gumline. In dentistry, calculus or tartar is a form of hardened dental plaque. It is caused by the continual accumulation of… … Wikipedia

**Calculus** — A stone, as in the urinary tract. Also, the calcium salt deposits on the teeth. The word calculus in Latin means a pebble. Pebbles were once used for counting, from which came the mathematical field of calculus. A urinary calculus is a pebble in… … Medical dictionary

**Calculus, renal** — A stone in the kidney (or lower down in the urinary tract). Also called a kidney stone. The stones themselves are called renal caluli. The word “calculus” (plural: calculi) is the Latin word for pebble. Renal stones are a common cause of blood in … Medical dictionary

**brushite calculus** — a hard, light colored phosphate calculus composed of brushite … Medical dictionary

**whitlockite calculus** — a phosphate calculus composed of whitlockite … Medical dictionary

**Salivary duct calculus** — is a concretion of mostly calcium mineral salts (calculus) that forms within the ducts. This calculus (sialolith pronounced SIGH al low lith) is a salivary gland stone consisting of layers of calcified organic matter calcium phosphate and carbon … Wikipedia

**urinary calculus** — n a calculus occurring in any portion of the urinary tract and esp. in the pelvis of the kidney called also urinary stone, urolith * * * a calculus in any part of the urinary tract; vesical calculi are those lodged in the bladder and renal… … Medical dictionary

**secondary renal calculus** — a calculus associated with infection and obstruction, usually composed of struvite (magnesium ammonium phosphate) … Medical dictionary