# subfraction

## fraction

[frak-shuhn]
noun
1.
Mathematics.
a.
a number usually expressed in the form a/b.
b.
a ratio of algebraic quantities similarly expressed.
2.
Chemistry. (in a volatile mixture) a component whose range of boiling point temperatures allows it to be separated from other components by fractionation.
3.
a part as distinct from the whole of anything; portion or section: The meeting started with a fraction of us present.
4.
a very small part or segment of anything; minute portion: Only a fraction of the work was completed on time.
5.
a very small amount; a little bit: It was only a fraction away from completion.
6.
a piece broken off; fragment or bit.
7.
the act of breaking.
8.
Ecclesiastical. (in a Eucharistic service) the breaking of the Host.
verb (used with object), verb (used without object)
9.
to divide or break into fractions, sections, factions, etc.: Dissension threatens to fraction the powerful union.

Origin:
1350–1400; Middle English fraccioun < Late Latin frāctiōn- (stem of frāctiō) a breaking (in pieces), equivalent to Latin frāct(us) (past participle of frangere to break) + -iōn- -ion

subfraction, noun

3, 6. See part.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
 fraction (ˈfrækʃən) —n 1. maths a.  a ratio of two expressions or numbers other than zero b.  any rational number that is not an integer 2. any part or subdivision: a substantial fraction of the nation 3. a small piece; fragment 4. chem a component of a mixture separated by a fractional process, such as fractional distillation 5. Christianity the formal breaking of the bread in Communion 6. the act of breaking —vb 7. (tr) to divide [C14: from Late Latin fractiō a breaking into pieces, from Latin fractus broken, from frangere to break]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

fraction
late 14c., from L.L. fractionem (nom. fractio) "a breaking," especially into pieces, from root of L. frangere (pt. fregi) "to break," from PIE base *bhr(e)g- (cf. Skt. (giri)-bhraj "breaking-forth (out of the mountains);" Goth. brikan, O.E. brecan "to break;" Lith. brasketi "crash, crack;" O.Ir. braigim
"break" wind). Mathematical sense was the original one in English. Sense of "broken off piece, fragment," is from c.1600.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

fraction frac·tion (frāk'shən)
n.

1. An expression that indicates the quotient of two quantities.

2. A chemical component separated by fractionation.

3. A disconnected piece; a fragment.

4. An aliquot portion or any portion.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
 fraction  [%PREMIUM_LINK%]     (frāk'shən)  Pronunciation Key  A number that compares part of an object or a set with the whole, especially the quotient of two whole numbers written in the form a/b. The fraction 1/2 , which means 1 divided by 2, can represent such things as 10 pencils out of a box of 20, or 50 cents out of a dollar. See also decimal fraction, improper fraction, proper fraction. A chemical component separated by fractionation.
The American Heritage® Science Dictionary
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American Heritage
Cultural Dictionary

### fraction definition

A mathematical expression representing the division of one whole number by another. Usually written as two numbers separated by a horizontal or diagonal line, fractions are also used to indicate a part of a whole number or a ratio between two numbers. Fractions may have a value of less than one, as with 1/2, or equal to one, as with 2/2, or more than one, as with 3/2. The top number of a fraction is the numerator and the bottom number is the denominator.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition