di·​sac·​cha·​ride (ˌ)dī-ˈsa-kə-ˌrīd How to pronounce disaccharide (audio)
: any of a class of sugars (such as sucrose) that yields on hydrolysis two monosaccharide molecules

Example Sentences

Recent Examples on the Web One simple way to caramelize table sugar is by heating: this process removes water from the disaccharide sucrose (a substance composed of two simple sugars) and breaks it down into monosaccharides fructose and glucose. Catherine Hu, Discover Magazine, 9 Dec. 2014 The table or granulated sugar most customarily used as food is sucrose, a disaccharide (in the body, sucrose hydrolyses into fructose and glucose). Science & Food, Discover Magazine, 16 Apr. 2013 The second is disaccharides, which are just two of these single sugar molecules linked together: sucrose, or table sugar (glucose + fructose); lactose, or milk sugar (glucose + galactose); and maltose, or malt sugar (glucose + glucose). Carolyn L. Todd, SELF, 24 June 2019 FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols. Don Rauf, chicagotribune.com, 23 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'disaccharide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of disaccharide was in 1864

Dictionary Entries Near disaccharide

Cite this Entry

“Disaccharide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disaccharide. Accessed 30 Jan. 2023.

Medical Definition


di·​sac·​cha·​ride (ˈ)dī-ˈsak-ə-ˌrīd How to pronounce disaccharide (audio)
: any of a class of sugars (as sucrose) that on hydrolysis yields two monosaccharide molecules

called also biose, double sugar

More from Merriam-Webster on disaccharide

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