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real number

[ree-uh l, reel] /ˈri əl, ril/
noun, Mathematics
1.
a rational number or the limit of a sequence of rational numbers, as opposed to a complex number.
Also called real.
Origin
1905-1910
1905-10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for real numbers

real number

noun
1.
a number expressible as a limit of rational numbers See number (sense 1)
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
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real numbers in Science
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, 3/7 , and pi (π) are all real numbers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Value for real

4
5
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