# multiplication

[ muhl-tuh-pli-key-shuhn ]
/ ˌmʌl tə plɪˈkeɪ ʃən /

### noun

the act or process of multiplying or the state of being multiplied.
Arithmetic. a mathematical operation, symbolized by a × b, a ⋅ b, a ∗ b, or ab, and signifying, when a and b are positive integers, that a is to be added to itself as many times as there are units in b; the addition of a number to itself as often as is indicated by another number, as in 2×3 or 5×10.
Mathematics. any generalization of this operation applicable to numbers other than integers, as fractions or irrational numbers.

## QUIZZES

#### DISCOVER THE INFLUENCE OF PORTUGUESE ON ENGLISH VIA THIS QUIZ!

We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?

## Origin ofmultiplication

1350–1400; Middle English multiplicacio(u)n<Latin multiplicātiōn- (stem of multiplicātiō). See multi-, plication

## Words nearby multiplication

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

## British Dictionary definitions for multiplication

multiplication
/ (ˌmʌltɪplɪˈkeɪʃən) /

### noun

an arithmetical operation, defined initially in terms of repeated addition, usually written a  ×  b, a.b, or ab, by which the product of two quantities is calculated: to multiply a by positive integral b is to add a to itself b times. Multiplication by fractions can then be defined in the light of the associative and commutative properties; multiplication by 1/ n is equivalent to multiplication by 1 followed by division by n: for example 0.3 × 0.7 = 0.3 × 7/10 = (0.3 × 7)/10 = 2 1/10 = 0.21
the act of multiplying or state of being multiplied
the act or process in animals, plants, or people of reproducing or breeding

## Derived forms of multiplication

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

## Medical definitions for multiplication

multiplication
[ mŭl′tə-plĭ-kāshən ]

### n.

The act or process of multiplying or the condition of being multiplied.
Propagation of plants and animals; procreation.