fruc·​tose ˈfrək-ˌtōs How to pronounce fructose (audio)
ˈfru̇k- How to pronounce fructose (audio) -ˌtōz How to pronounce fructose (audio)
: a crystalline sugar C6H12O6 sweeter and more soluble than glucose
: 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 Avoid fruits that are high in fructose, such as apples, pears and watermelon. Christine Nguyen, D.o. Mayo Foundation For Medical Education and Research, Chicago Tribune, 8 Sep. 2023 Fructose in Fruits The sugar found in fruit is called fructose. Danielle Weiss, Verywell Health, 25 June 2023 The increased gas may be due to intolerances to sugars like fructose and sorbitol. Maxine Lipner, Health, 25 Sep. 2023 Sugar in the form of fructose, sucrose, dextrose, honey, corn syrup or as a grain or cube remains the most popular way to sweeten a drink, but there exist a host of artificial options on the other side as well. Daryl Austin, USA TODAY, 7 Sep. 2023 Tequila is made from agave, which naturally contains fructose, a natural sugar. James Barrett, Women's Health, 11 July 2023 However, certain fruits can cause your blood sugar to spike more quickly than others, depending on their fiber and fructose content. Danielle Weiss, Verywell Health, 25 June 2023 And unfortunately, fructose leads to more fat in this dangerous area around the organs of the abdomen. Taylor Wilson, USA TODAY, 1 May 2023 But drinking too little water, exercising either too little or too much, and consuming too much salt or sugar (especially fructose) could also contribute to kidney stones, the National Kidney Foundation says. Women's Health, 28 Apr. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fructose.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

Dictionary Entries Near fructose

Cite this Entry

“Fructose.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2024.

Kids Definition


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

Medical Definition


fruc·​tose ˈfrək-ˌtōs How to pronounce fructose (audio) ˈfrük- How to pronounce fructose (audio) ˈfru̇k- How to pronounce fructose (audio)
: an optically active sugar C6H12O6 that differs from glucose in having a ketonic rather than an aldehydic carbonyl group
: 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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