# calculus

[ kal-kyuh-luhs ]
/ ˈkæl kyə ləs /
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noun, plural cal·cu·li [kal-kyuh-lahy], /ˈkæl kyəˌlaɪ/, cal·cu·lus·es.
Mathematics. a method of calculation, especially one of several highly systematic methods of treating problems by a special system of algebraic notations, as differential or integral calculus.
Pathology. a stone, or concretion, formed in the gallbladder, kidneys, or other parts of the body.
Also called tartar. Dentistry. a hard, yellowish to brownish-black deposit on teeth formed largely through the mineralization of dead bacteria in dental plaques by the calcium salts in salivary secretions and subgingival transudates.
calculation; estimation or computation: the calculus of political appeal.
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## Origin ofcalculus

1610–20; <Latin: pebble, small stone (used in reckoning), equivalent to calc- (stem of calx stone) + -ulus-ule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## British Dictionary definitions for calculus

calculus
/ (ˈkælkjʊləs) /

noun plural -luses
a branch of mathematics, developed independently by Newton and Leibniz. Both differential calculus and integral calculus are concerned with the effect on a function of an infinitesimal change in the independent variable as it tends to zero
any mathematical system of calculation involving the use of symbols
logic an uninterpreted formal systemCompare formal language (def. 2)
plural -li (-ˌlaɪ) pathol a stonelike concretion of minerals and salts found in ducts or hollow organs of the body

## Word Origin for calculus

C17: from Latin: pebble, stone used in reckoning, from calx small stone, counter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Scientific definitions for calculus

calculus
[ kălkyə-ləs ]

Plural calculi (kălkyə-lī′) calculuses
The branch of mathematics that deals with limits and the differentiation and integration of functions of one or more variables. See more at calculus of variations differential calculus integral calculus.
A solid mass, usually composed of inorganic material, formed in a cavity or tissue of the body. Calculi are most commonly found in the gallbladder, kidney, or urinary bladder. Also called stone