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rational number
Word Origin
noun
,
Mathematics.
1.
a number that can be expressed exactly by a ratio of two integers.
Origin of
rational number
Expand
1900-1905
First recorded in
1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for
rational number
Expand
rational number
noun
1.
any real number of the form
a
/
b
, where
a
and
b
are integers and
b
is not zero, as 7 or 7/3
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
Cite This Source
rational number
in Science
Expand
rational number
A number that can be expressed as an integer or a quotient of integers. For example, 2, -5, and
^{1}
/
_{2}
are rational numbers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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Difficulty index for
rational number
Few English speakers likely know this word
Word Value for
rational
8
10
Scrabble
Words With Friends
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