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[dih-nom-uh-ney-ter] /dɪˈnɒm əˌneɪ tər/
Arithmetic. that term of a fraction, usually written under the line, that indicates the number of equal parts into which the unit is divided; divisor.
Compare numerator (def 1).
something shared or held in common; standard.
Archaic. a person or thing that denominates.
Origin of denominator
1535-45; < Medieval Latin dēnōminātor, equivalent to Latin dēnōminā(re) (see denominate) + -tor -tor Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for denominator


the divisor of a fraction, as 8 in 7/8 Compare numerator (sense 1)
(archaic) a person or thing that denominates or designates
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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Word Origin and History for denominator

1540s, in mathematics, from Medieval Latin denominator, agent noun from past participle stem of denominare (see denomination).

Online Etymology Dictionary, © 2010 Douglas Harper
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denominator in Science
The number below or to the right of the line in a fraction, indicating the number of equal parts into which one whole is divided. For example, in the fraction 2/7 , 7 is the denominator.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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denominator in Culture
denominator [(di-nom-uh-nay-tuhr)]

In mathematics, the number that appears on the bottom of a fraction. In the fraction 2/3, the denominator is 3. (Compare numerator.)

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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