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
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Every gram of glycogen typically stores 3 to 4 g of water with it.9 Reducing carbohydrates decreases the amount of water stored in your cells. Anna Giorgi, Verywell Health, 4 Mar. 2025 Noakes’s view is that glycogen doesn’t matter, and that the real benefit is preventing a blood sugar crash. Alex Hutchinson, Outside Online, 3 Mar. 2025 Those storage spots typically contain enough glycogen to fuel 90 to 120 minutes of vigorous movement, such as running. Cindy Kuzma, SELF, 28 Jan. 2025 Refined carbs can help athletes fuel up before intensive training or competition and can also be used to replenish glycogen stores after intense workouts. Jillian Kubala, Health, 18 Jan. 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

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Cite this Entry

“Glycogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glycogen. Accessed 13 Mar. 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

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