denominator - Definitions from Dictionary.com

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

de·nom·i·na·tor

Audio Help [di-nom-uh-ney-ter] Pronunciation Key

–noun

1.	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).

2.	something shared or held in common; standard.

3.	Archaic. a person or thing that denominates.

[Origin: 1535–45; < ML dénōminātor, equiv. to L dénōminā(re) (see denominate) + -tor -tor

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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American Heritage Dictionary - Cite This Source - Share This

de·nom·i·na·tor Audio Help (dĭ-nŏm'ə-nā'tər) Pronunciation Key
n.

Mathematics The expression written below the line in a common fraction that indicates the number of parts into which one whole is divided.
A common trait or characteristic.
An average level or standard: The success of the film demonstrates the denominator of public taste.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

WordNet - Cite This Source - Share This

denominator
noun
the divisor of a fraction

The American Heritage Science Dictionary - Cite This Source - Share This

denominator Audio Help (dĭ-nŏm'ə-nā'tər) Pronunciation Key
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 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
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.)

[Chapter:] Physical Sciences and Mathematics

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

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Denominator

De*nom"i*na`tor\, n. [Cf. F. d['e]nominateur.]

1. One who, or that which, gives a name; origin or source of a name.

This opinion that Aram . . . was the father and denomination of the Syrians in general. --Sir W. Raleigh.

2. (Arith.) That number placed below the line in vulgar fractions which shows into how many parts the integer or unit is divided.

Note: Thus, in 3/5, 5 is the denominator, showing that the integer is divided into five parts; and the numerator, 3, shows how many parts are taken.

3. (Alg.) That part of any expression under a fractional form which is situated below the horizontal line signifying division.

Note: In this sense, the denominator is not necessarily a number, but may be any expression, either positive or negative, real or imaginary. --Davies & Peck (Math. Dict. )

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