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# calculus

play
noun cal·cu·lus \-ləs\

## Simple Definition of calculus

• : an advanced branch of mathematics that deals mostly with rates of change and with finding lengths, areas, and volumes

Source: Merriam-Webster's Learner's Dictionary

plural

## calculi

play \-ˌlī, -ˌlē\ also

## calculuses

1. 1 a :  a method of computation or calculation in a special notation (as of logic or symbolic logic) b :  the mathematical methods comprising differential and integral calculus —often used with the

2. 2

3. 3 a :  a concretion usually of mineral salts around organic material found especially in hollow organs or ducts b :  1tartar 2

4. 4 :  a system or arrangement of intricate or interrelated parts

## Examples of calculus in a sentence

1. <by my calculus the more efficient air conditioner will have paid for itself within a span of five years>

## Did You Know?

In Latin calculus meant “pebble.” Because the Romans used pebbles to do addition and subtraction on a counting board, the word became associated with computation. Other English derivatives include calculator and calculation. Calculus itself has been borrowed into English as a medical term that refers to masses of matter in the body such as kidney stones (a straightforward extension of the meaning “pebble”) and to refer to a system of mathematical computation.

## Origin and Etymology of calculus

Latin, stone (used in reckoning)

First Known Use: 1666

## calculus

play
noun cal·cu·lus \ˈkal-kyə-ləs\

## Definition of calculus for Students

1. :  a branch of mathematics that deals mostly with rates of change and with finding lengths, areas, and volumes

## calculus

play
noun cal·cu·lus \-ləs\

plural

## calculi

\-ˌlī, -ˌlē\play also

## calculuses

1. 1:  a concretion usually of mineral salts around organic material found especially in hollow organs or ducts

2. 2:  a concretion on teeth :  tartar

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