1
: of, relating to, or being a fraction
2
: of, relating to, or being fractional currency
3
: relatively small : inconsiderable
4
: of, relating to, or involving a process for separating components of a mixture through differences in physical or chemical properties
fractional distillation
fractionally adverb

Examples of fractional in a Sentence

There has been a fractional rise in the price of the stock. There is only a fractional improvement in the new version.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The fractional model makes that possible without committing to a full-time executive salary and infrastructure. — Loran Armstrong, Forbes.com, 1 Oct. 2026 Tokenized equities and funds change that arithmetic, making fractional ownership viable at the cost of a phone top-up and cutting transaction costs by more than 30%. — Michael Faulkender, Baltimore Sun, 31 Aug. 2026 Our methodology To determine the best micro-investing apps, CNBC Select compared platforms that let users invest with little to no money upfront, whether through round-ups, fractional shares or low account minimums. — Andreina Rodriguez, CNBC, 19 Aug. 2026 See All Example Sentences for fractional

Word History

Etymology

fraction + -al entry 1

First Known Use

1650, in the meaning defined at sense 1

Time Traveler
The first known use of fractional was in 1650

Browse Nearby Words

Cite this Entry

“Fractional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fractional. Accessed 6 Oct. 2026.

Kids Definition

fractional

adjective
frac·​tion·​al ˈfrak-shnəl How to pronounce fractional (audio)
-shən-ᵊl
1
: of, relating to, or being a fraction
fractional equivalents of percentages
2
: fairly small
fractionally
-ē
adverb

Medical Definition

fractional

adjective
: of, relating to, or involving a process for separating components of a mixture through differences in physical or chemical properties
fractional distillation
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