exponent

[ik-spoh-nuhnt, ek-spoh-nuhnt] Origin

ex·po·nent

[ik-spoh-nuhnt, ek-spoh-nuhnt]
noun
1.
a person or thing that expounds, explains, or interprets: an exponent of modern theory in the arts.
2.
a person or thing that is a representative, advocate, type, or symbol of something: Lincoln is an exponent of American democracy.
3.
Mathematics. a symbol or number placed above and after another symbol or number to denote the power to which the latter is to be raised: The exponents of the quantities xn, 2m, y4, and 35 are, respectively, n, m, 4, and 5.

Origin:
1575–85; < Latin expōnent- (stem of expōnēns), present participle of expōnere to expound; see -ent


1. supporter, champion, proponent, promoter. 2. embodiment, personification.

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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Exponent is always a great word to know.
So is rule of three. Does it mean:
a number that is a multiple of all the denominators of a set of fractions
the method of finding the fourth term in a proportion when three terms are given
Collins
World English Dictionary
exponent (ɪkˈspəʊnənt)
 
n
1.  (usually foll by of) a person or thing that acts as an advocate (of an idea, cause, etc)
2.  a person or thing that explains or interprets
3.  a performer or interpretive artist, esp a musician
4.  maths power, Also called: index a number or variable placed as a superscript to the right of another number or quantity indicating the number of times the number or quantity is to be multiplied by itself
 
adj
5.  offering a declaration, explanation, or interpretation
 
[C16: from Latin expōnere to set out, expound, from pōnere to set, place]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

exponent
1706, from L. exponentem, prp. of exponere "put forth" (see expound). A mathematical term at first; the sense of "one who expounds" is 1812.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
exponent   (ěk'spō'nənt, ĭk-spō'nənt)  Pronunciation Key 
A number or symbol, placed above and to the right of the expression to which it applies, that indicates the number of times the expression is used as a factor. For example, the exponent 3 in 53 indicates 5 × 5 × 5; the exponent x in (a + b)x indicates (a + b) multiplied by itself x times.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

exponent definition


A number placed above and to the right of another number to show that it has been raised to a power. For example, 32 indicates that 3 has been raised to a power of 2, or multiplied by itself; 32 is equal to 9.

The American Heritage® 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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FOLDOC
Computing Dictionary

exponent definition

programming
(Or "characteristic") The part of a floating-point number specifying the power of ten by which the mantissa should be multiplied. In the common notation, e.g. 3.1E8, the exponent is 8.
(1995-02-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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