fructose

noun

fruc·​tose ˈfrək-ˌtōs How to pronounce fructose (audio) ˈfrük- How to pronounce fructose (audio) ˈfru̇k- How to pronounce fructose (audio)
-ˌtōz
1
: a crystalline sugar C6H12O6 sweeter and more soluble than glucose
2
: the very sweet levorotatory d-form of fructose that occurs especially in fruit juices and honey

called also fruit sugar, levulose

Examples of fructose in a Sentence

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.
Apples Apples are fiber-rich and also contain the sugars fructose and sorbitol. Cristina Mutchler, Verywell Health, 24 Sep. 2025 Tyson Foods and its many brands won't contain high-fructose corn syrup anymore. Brandee Gruener, Southern Living, 18 Sep. 2025 That includes high-fructose corn syrup, some preservatives and artificial dyes. Alina Selyukh, NPR, 8 Sep. 2025 For example, table sugar is a unit of glucose bonded with a unit of fructose. Bryant Stamford, Louisville Courier Journal, 4 Sep. 2025 See All Example Sentences for fructose

Word History

Etymology

Latin frūctus fruit entry 1 + -ose entry 2

Note: The term was apparently introduced by the British chemist William Allen Miller (1817-70) in Elements of Chemistry: Theoretical and Practical, Part III, Organic Chemistry (London, 1857), p. 57.

First Known Use

circa 1864, in the meaning defined at sense 1

Time Traveler
The first known use of fructose was circa 1864

Browse Nearby Words

Cite this Entry

“Fructose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fructose. Accessed 8 Oct. 2025.

Kids Definition

fructose

noun
: a very sweet sugar that dissolves easily and occurs especially in fruit juices and honey

Medical Definition

fructose

noun
fruc·​tose ˈfrək-ˌtōs How to pronounce fructose (audio) ˈfrük- How to pronounce fructose (audio) ˈfru̇k- How to pronounce fructose (audio)
-ˌtōz
1
: an optically active sugar C6H12O6 that differs from glucose in having a ketonic rather than an aldehydic carbonyl group
2
: the very sweet soluble levorotatory D-form of fructose that occurs especially in fruit juices and honey

called also levulose

More from Merriam-Webster on fructose

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