glycogen

noun

gly·​co·​gen ˈglī-kə-jən How to pronounce glycogen (audio)
: a white amorphous tasteless polysaccharide (C6H10O5)x that is the principal form in which glucose is stored in animal tissues and especially muscle and liver tissue

Examples of glycogen 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.
In addition, each pound of glycogen is stored with 2.7 pounds of water. Bryant Stamford, The Courier-Journal, 25 July 2025 This will likely come in the form of carbohydrates, like glycogen in the muscles. Monica Cull, Discover Magazine, 3 July 2025 Overall, this study furthers our understanding of glycogen stores and how healthy neurons can quickly degenerate if the conditions for impeding metabolism are present. New Atlas, 30 June 2025 These carbs can also help replenish glycogen stores that are depleted during strenuous activity. Lindsey Desoto, Health, 1 July 2025 See All Example Sentences for glycogen

Word History

First Known Use

circa 1864, in the meaning defined above

Time Traveler
The first known use of glycogen was circa 1864

Browse Nearby Words

Cite this Entry

“Glycogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glycogen. Accessed 6 Aug. 2025.

Kids Definition

glycogen

noun
gly·​co·​gen ˈglī-kə-jən How to pronounce glycogen (audio)
: a white tasteless substance that is the chief form in which glucose is stored in animals

Medical Definition

glycogen

noun
gly·​co·​gen ˈglī-kə-jən How to pronounce glycogen (audio)
: a white amorphous tasteless polysaccharide (C6H10O5)x that constitutes the principal form in which glucose is stored in animal tissues, occurs especially in the liver and in muscle and also in fungi and yeasts, and resembles starch in molecular structure and in the formation of only glucose on complete hydrolysis

called also animal starch

More from Merriam-Webster on glycogen

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!