- pertaining to fractions; comprising a part or the parts of a unit; constituting a fraction: fractional numbers.
- comparatively small; inconsiderable or insignificant: The profit on the deal was fractional.
- Chemistry. of or noting a process, as distillation, crystallization, or oxidation, by which the component substances of a mixture are separated according to differences in certain of their properties, as boiling point, critical temperature, or solubility.
Also frac·tion·ar·y [frak-shuh-ner-ee] /ˈfræk ʃəˌnɛr i/.
Origin of fractional
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for fractionally
The solution is fractionally distilled, using a special form of distilling column.
Let us suppose that on this same given day the majority of tokens distributed are all fractionally larger than normal."To Invade New York...."
The young man hesitated, fractionally, struck with the rattletrap's supreme lack of dignity.Angela's Business
Henry Sydnor Harrison
- relating to, containing, or constituting one or more fractions
- of or denoting a process in which components of a mixture are separated by exploiting differences in their physical properties, such as boiling points, solubility, etcfractional distillation; fractional crystallization
- very small or insignificant
- broken up; fragmented
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
Word Origin and History for fractionally
Online Etymology Dictionary, © 2010 Douglas Harper