glycogen

noun
gly·​co·​gen | \ ˈglī-kə-jən How to pronounce glycogen (audio) \

Definition of glycogen

: 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

When no glycogen is available for energy, the body does go into ketosis, turning to fat for energy. SELF, "What You Need to Know Before Trying Intermittent Fasting," 7 Nov. 2018 For most people, start to fuel 30 to 45 minutes into the run to get a head start on your glycogen storage. Laura Schwecherl, SELF, "The First-Time Marathoner's Guide to Fuel and Hydration for Your Marathon Training," 6 Oct. 2018 The body turns to glycogen—carbohydrates that are stored in the liver and muscles—for fuel. SELF, "What You Need to Know Before Trying Intermittent Fasting," 7 Nov. 2018 This makes a strategic refueling plan all the more important, ensuring optimal hydration and replenishing glycogen stores. Laura Schwecherl, SELF, "14 Experienced New York City Marathoners Share Their Best Tips for First-Timers," 30 Oct. 2018 In humans, fasting for 12 hours or more drops the levels of glycogen, a form of cellular glucose. Mark Barna, Discover Magazine, "Not So Fast," 24 Sep. 2018 The pancreas produces insulin in order to move that glucose into the tissues of our body, which is then used for energy or, in the case of our liver, is stored as glycogen that's released between meals to keep blood sugar levels stable. Colleen Stinchcombe, Woman's Day, "What's the Difference Between Type 1 and Type 2 Diabetes?," 10 Sep. 2018 In about 45 minutes of active play, many athletes can deplete their reserves of glycogen. Mari A. Schaefer, Philly.com, "Drexel's Dragon Gel sports snack fuels college teams, Union, Flyers," 23 Apr. 2018 Such brain training might also increase the amount of fuel your brain is able to store, just as exercise leads to an increase in how much glycogen your muscles can store. Alex Hutchinson, Outside Online, "Here’s What We Know About Mental Fatigue," 10 July 2018

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

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First Known Use of glycogen

circa 1864, in the meaning defined above

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Last Updated

20 Mar 2019

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Time Traveler for glycogen

The first known use of glycogen was circa 1864

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More Definitions for glycogen

glycogen

noun
gly·​co·​gen | \ ˈglī-kə-jən How to pronounce glycogen (audio) \

Kids Definition of glycogen

: a white tasteless starchy substance that is the main form in which glucose is stored in the body

glycogen

noun
gly·​co·​gen | \ ˈglī-kə-jən How to pronounce glycogen (audio) \

Medical Definition of glycogen

: 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

Britannica.com: Encyclopedia article about glycogen

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