Dictionary

arithmetic

noun arith·me·tic \ə-ˈrith-mə-ˌtik\

: a branch of mathematics that deals with numbers and their addition, subtraction, multiplication, and division

: the act or process of calculating a number

Full Definition of ARITHMETIC

1
a :  a branch of mathematics that deals usually with the nonnegative real numbers including sometimes the transfinite cardinals and with the application of the operations of addition, subtraction, multiplication, and division to them
b :  a treatise on arithmetic
2
ar·ith·met·ic \ˌer-ith-ˈme-tik, ˌa-rith\ or ar·ith·met·i·cal \-ti-kəl\ adjective
ar·ith·met·i·cal·ly \-ti-k(ə-)lē\ adverb
arith·me·ti·cian \ə-ˌrith-mə-ˈti-shən\ noun

Examples of ARITHMETIC

  1. a software program that will do the arithmetic for you
  2. <I haven't actually done the arithmetic yet, but I suspect we're losing money on the deal.>

Origin of ARITHMETIC

Middle English arsmetrik, from Anglo-French arismatike, from Latin arithmetica, from Greek arithmētikē, from feminine of arithmētikos arithmetical, from arithmein to count, from arithmos number; akin to Old English rīm number, and perhaps to Greek arariskein to fit
First Known Use: 15th century

Other Mathematics and Statistics Terms

abscissa, denominator, divisor, equilateral, exponent, hypotenuse, logarithm, oblique, radii, rhomb

Browse

Next Word in the Dictionary: arithmetical discountPrevious Word in the Dictionary: arithlog paperAll Words Near: arithmetic
April 19, 2015
desiccate Hear it
to dry up or become dried up
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears