# arithmetic

[ noun uh-rith-muh-tik; adjective ar-ith-met-ik ]
See synonyms for arithmetic on Thesaurus.com
noun
1. the method or process of computation with figures: the most elementary branch of mathematics.

2. Also called higher arithmetic, the·o·ret·i·cal a·rith·me·tic [thee-uh-ret-i-kuhluh-rith-muh-tik] /ˌθi əˈrɛt ɪ kəl əˈrɪθ mə tɪk/ . the theory of numbers; the study of the divisibility of whole numbers, the remainders after division, etc.

1. a book on this subject.

1. Also arithmetical. of or relating to arithmetic.

## Origin of arithmetic

1
1200–50; <Latin arithmētica, feminine singular of arithmēticus<Greek arithmētikḗ (téchnē) (art, skill) of numbers, equivalent to arithmé(ein) to reckon + -t(o)- verbal adjective + -ikḗ-ic; replacing Middle English arsmet(r)ike<Old French arismetique<Medieval Latin arismētica, with s for Late Greek th

## Words Nearby arithmetic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## British Dictionary definitions for arithmetic

arithmetic

/ (əˈrɪθmətɪk) /

noun
1. the branch of mathematics concerned with numerical calculations, such as addition, subtraction, multiplication, and division

2. one or more calculations involving numerical operations

1. knowledge of or skill in using arithmetic: his arithmetic is good

1. of, relating to, or using arithmetic

## Origin of arithmetic

1
C13: from Latin arithmētica, from Greek arithmētikē, from arithmein to count, from arithmos number

## Derived forms of arithmetic

• arithmetician, noun

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 arithmetic

arithmetic

[ ə-rĭthmĭ-tĭk ]

1. The mathematics of integers, rational numbers, real numbers, or complex numbers under the operations of addition, subtraction, multiplication, and division.