malt·​ose ˈmȯl-ˌtōs How to pronounce maltose (audio)
: a crystalline dextrorotatory fermentable sugar C12H22O11 formed especially from starch by amylase

Examples of maltose in a Sentence

Recent Examples on the Web On the other hand, the maltose from the non-adapted male cockroaches converts to glucose in just a few seconds, per New Scientist’s Christa Lesté-Lasserre. Will Sullivan, Smithsonian Magazine, 7 Apr. 2023 Meanwhile, the females seem to be developing changes in their saliva that make the process of turning maltose or maltotriose into glucose even slower. Popsci Staff, Popular Science, 5 July 2023 The males’ secretions include the compound maltose, which rapidly breaks down into glucose when mixed with females’ saliva. Will Sullivan, Smithsonian Magazine, 7 Apr. 2023 In the pull quote, Eliason argues that the process of breaking down oats creates a natural form of sugar called maltose. Lydia Wang,, 7 Apr. 2021 Within two days, their yeast could grow four times more rapidly when given maltose. Anna Funk, Discover Magazine, 5 Apr. 2019 That’s exactly what happened to some Israeli fruit flies, which were raised on diets of either maltose or starch. Ed Yong, Discover Magazine, 29 Dec. 2010 The best barbecue pork should be slightly charred on the outside and contain just the right amount of sweetness and saltiness from the maltose, wine and soy sauce. Maggie Hiufu Wong, CNN, 13 Oct. 2022 The whole duck is then cleaned, prepped, dried, glazed with maltose and spices, dried again, and roasted. National Geographic, 18 Mar. 2020 See More

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

Word History


French, from English malt entry 1

First Known Use

1862, in the meaning defined above

Time Traveler
The first known use of maltose was in 1862

Dictionary Entries Near maltose

Cite this Entry

“Maltose.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2023.

Kids Definition


malt·​ose ˈmȯl-ˌtōs How to pronounce maltose (audio)
: a sugar formed especially from starch by the action of enzymes and used in brewing and distilling

Medical Definition


: a crystalline dextrorotatory fermentable disaccharide sugar C12H22O11 formed especially from starch by amylase (as in saliva and malt), as an intermediate reducing product in metabolism, and in brewing and distilling and used chiefly in foods and in biological culture media

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