From Middle English fraccioun (“a breaking”), from Anglo-Norman, from Medieval Latin fractio (“a fragment, portion”), from earlier Latin fractio (“a breaking, a breaking into pieces”), from fractus (English fracture), past participle of frangere (“to break”) (whence English frangible), from Proto-Indo-European *bʰrag- (English break).
fraction (plural fractions)
- A part of a whole, especially a comparatively small part.
- 1992, Rudolf M. Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, page vii
- With fresh material, taxonomic conclusions are leavened by recognition that the material examined reflects the site it occupied; a herbarium packet gives one only a small fraction of the data desirable for sound conclusions. Herbarium material does not, indeed, allow one to extrapolate safely: what you see is what you get […]
- A ratio of two numbers, the numerator and the denominator, usually written one above the other and separated by a horizontal bar.
- (chemistry) A component of a mixture, separated by fractionation.
- In a eucharistic service, the breaking of the host.
- A small amount.
- 2011 January 29, Chris Bevan, “Torquay 0 - 1 Crawley Town”, BBC:
- After kick-off was delayed because of crowd congestion, Torquay went closest to scoring in a cagey opening 30 minutes, when Danny Stevens saw a fierce shot from the edge of the area swerve a fraction wide.
Derived terms 
Terms derived from fraction (noun)
Related terms 
Terms etymologically related to fraction
chemistry: component separated by fractionation
eucharistic service: breaking of the host
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
Translations to be checked
fraction (third-person singular simple present fractions, present participle fractioning, simple past and past participle fractioned)
- To divide or break into fractions.
to divide intio fractions
- “fraction” in Dictionary.com Unabridged, v1.0.1, Lexico Publishing Group, 2006.
- “fraction” in The American Heritage® Dictionary of the English Language, Fourth Edition, Houghton Mifflin Company, 2000.
- "fraction" in WordNet 3.0, Princeton University, 2006.
fraction f (plural fractions)
- fraction (small amount)
- Je me suis endormi pendant une fraction de secondes.
- (mathematics) fraction
- En divisant deux par trois, on obtient une fraction irréductible.
- fraction, breakup
Derived terms