• synonyms


noun Biochemistry.
  1. any of the class of compounds that yield a sugar and an aglycon upon hydrolysis.
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Origin of glycoside

1925–30; glycose (a monosaccharide) + -ide
Related formsgly·co·sid·ic [glahy-kuh-sid-ik] /ˌglaɪ kəˈsɪd ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for glycoside


  1. any of a group of substances, such as digitoxin, derived from monosaccharides by replacing the hydroxyl group by another group. Many are important medicinal drugsSee also glucoside
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Derived Formsglycosidic (ˌɡlaɪkəʊˈsɪdɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

glycoside in Medicine


  1. Any of a group of organic compounds, occurring abundantly in plants, that yield a sugar and one or more nonsugar substances on hydrolysis.
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Related formsgly′co•sidic (-sĭdĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

glycoside in Science


  1. Any of various organic compounds formed from a simple sugar (monosaccharide) by replacing the hydrogen atom of one of its hydroxyl groups (OH) with the bond to another biologically active molecule. Glycosides occur abundantly in plants, especially as pigments, and are used in medicines, dyes, and cleansing agents.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.