fraction [ frak-sh uhn ] SHOW IPA / ˈfræk ʃən / PHONETIC RESPELLING noun Mathematics. a number usually expressed in the form a/b. a ratio of algebraic quantities similarly expressed. Chemistry. (in a volatile mixture) a component whose range of boiling point temperatures allows it to be separated from other components by fractionation. a part as distinct from the whole of anything; portion or section: The meeting started with a fraction of us present. a very small part or segment of anything; minute portion: Only a fraction of the work was completed on time. a very small amount; a little bit: It was only a fraction away from completion. a piece broken off; fragment or bit. the act of breaking. Ecclesiastical. (in a Eucharistic service) the breaking of the Host. SEE MORE SEE LESS verb (used with or without object) to divide or break into fractions, sections, factions, etc.: Dissension threatens to fraction the powerful union. QUIZZES QUIZ YOURSELF ON “ITS” VS. “IT’S”!
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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Origin of fraction
First recorded in 1350–1400; Middle English
from Late Latin
) “a breaking (in pieces),” equivalent to Latin
(past participle of
“to break, shatter”; see
-iōn- -ion synonym study for fraction OTHER WORDS FROM fraction sub·frac·tion, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for fraction
The filtrate B (p. 20) from which gallic acid was precipitated by sulphuric acid in four
fractions was saved to examine for sugar.
This remedy was that same oyster-shell which is to be prescribed "
fractions of the sextillionth or decillionth degree."
Take a master petroleum chemist, infinitely skilled in the separation of crude oil into its
fractions. noun maths a ratio of two expressions or numbers other than zero any rational number that is not an integer any part or subdivision a substantial fraction of the nation a small piece; fragment chem a component of a mixture separated by a fractional process, such as fractional distillation Christianity the formal breaking of the bread in Communion SEE MORE SEE LESS Word Origin for fraction
C14: from Late Latin
fractiō a breaking into pieces, from Latin fractus broken, from frangere to break
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
n. An expression that indicates the quotient of two quantities. A chemical component separated by fractionation. A disconnected piece; a fragment. An aliquot portion or any portion.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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 . The fraction a b , 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. 1 2 See also decimal fraction improper fraction proper fraction. A chemical component separated by fractionation.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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 New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.