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# real number

[ ree-uhl, reel ]

/ ˈri əl, ril /

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noun Mathematics.

a rational number or the limit of a sequence of rational numbers, as opposed to a complex number.

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Also called real.

## Origin of real number

First recorded in 1905–10

## Words nearby real number

reallocate, reallocation, really, realm, real money trade, real number, real part, realpolitik, real presence, real property, real storage

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

## How to use real number in a sentence

## British Dictionary definitions for real number

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 real number

real number

[ rē′əl ]

A number that can be written as a terminating or nonterminating decimal; a rational or irrational number. The numbers 2, -12.5, 37, and pi (π) are all real numbers.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.