glu·​cose | \ ˈglü-ˌkōs How to pronounce glucose (audio) , -ˌkōz \

Definition of glucose

1 : a crystalline sugar C6H12O6 specifically : the sweet colorless soluble dextrorotatory form that occurs widely in nature and is the usual form in which carbohydrate is assimilated by animals
2 : a light-colored syrup made from cornstarch

Examples of glucose in a Sentence

Recent Examples on the Web Many Meticore ingredients possess natural properties that may strengthen the body’s natural defenses, protect it from different infectious agents, control cholesterol and glucose levels, manage blood pressure, and so much more. Daily Health Reports, Chron, "Meticore Reviews (2021 Updated) Diet Pills Supplement with Real Ingredients or Side Effects?," 4 Feb. 2021 Diabetes, which runs in Alma's family, happens when your body has a hard time regulating your blood sugar (also known as blood glucose), the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) explains. Melissa Matthews, SELF, "Grocery Diaries: A Mom Who's Into the Mediterranean Diet—With Some Flexibility," 5 Jan. 2021 In the kidneys and intestine, SGLT1 uses sodium to carry glucose into cells to provide them with energy. Ian Randall, Science | AAAS, "Why adding salt makes fruit—and candy—sweeter," 6 Oct. 2020 Mostly, type 2 diabetes, otherwise known as diabetes mellitus in the medical community, as the kidneys are under more stress to absorb excess glucose, Dr. Weiss explains. Zee Krstic, Good Housekeeping, "Why Am I Always Thirsty? 9 Explanations for Excessive Thirst, According to Experts," 27 Sep. 2020 When carbohydrates are consumed, they are digested and broken down into glucose. Stefani Sassos, Ms, Rdn, Cso, Good Housekeeping, "Everything You Need to Know About the Different Types of Sugar," 29 Oct. 2020 Even close to the warmth of the earth, the frogs will freeze like little green ice cubes — a process that doesn’t kill them because their blood contains high levels of glucose, which acts as a sort of antifreeze. Ned Rozell, Anchorage Daily News, "The scents, sights and sounds of fall equinox in Alaska," 3 Oct. 2020 The monitor still reads glucose, created by the chemical reaction caused by the presence of antibodies, and the level is proportional to the level of antibodies. Meredith Cohn,, "Coronavirus antibody tests have had plenty of problems. Hopkins is developing a better, at-home version.," 1 Oct. 2020 As insulin prices have soared, some people with diabetes who rely on the medication to regulate levels of glucose in their blood and prevent life-threatening complications have been forced to turn to lower-quality products or to ration their supply. Jamie Munks,, "New year brings new laws, including insulin price limit, while minimum wage goes up another dollar," 30 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'glucose.' 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 glucose

1840, in the meaning defined at sense 1

History and Etymology for glucose

French, modification of Greek gleukos must, sweet wine; akin to Greek glykys sweet — more at dulcet

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Time Traveler for glucose

Time Traveler

The first known use of glucose was in 1840

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Statistics for glucose

Last Updated

15 Feb 2021

Cite this Entry

“Glucose.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2021.

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More Definitions for glucose



English Language Learners Definition of glucose

technical : a type of sugar that is found in plants and fruits


glu·​cose | \ ˈglü-ˌkōs How to pronounce glucose (audio) \

Kids Definition of glucose

: a sugar in plant saps and fruits that is the usual form in which carbohydrate is taken in by the animal body and used as a source of energy


glu·​cose | \ ˈglü-ˌkōs, -ˌkōz How to pronounce glucose (audio) \

Medical Definition of glucose

: an optically active sugar C6H12O6 that has an aldehydic carbonyl group especially : the sweet colorless soluble dextrorotatory form that occurs widely in nature and is the usual form in which carbohydrate is assimilated by animals

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More from Merriam-Webster on glucose

Nglish: Translation of glucose for Spanish Speakers

Britannica English: Translation of glucose for Arabic Speakers Encyclopedia article about glucose

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