glu·cose | \ˈglü-ˌkōs, -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

Verily, a life sciences outfit with plans to monitor glucose levels with contact lenses, made the leap in 2015. Alex Davies, WIRED, "Inside X, the Moonshot Factory Racing to Build the Next Google," 11 July 2018 Your doctor can test your fasting plasma glucose level to check for Type 2 diabetes (a normal reading is less than 100 mg/dl). Cara Rosenbloom,, "Ignore calories and BMI. Here are the health numbers that really matter.," 9 July 2018 Unlike the Zenomics patch, the Afrezza inhaler can’t test your glucose levels. Mike Feibus, USA TODAY, "Afraid of needles? These start-ups are working on alternatives," 8 July 2018 FitScript’s digital health program, called GlucoseZone, helps people control their diabetes through fitness by guiding users through workouts based on their real-time glucose levels, recent meals, medication and other information. Rebecca Lurye,, "New Haven's FitScript Partners With American Diabetes Association," 28 June 2018 All participants were deemed to be at high risk for diabetes before entering the study based on their elevated fasting glucose levels. Sarah Jacoby, SELF, "The Science on Weight and Health," 26 June 2018 With the ketogenic diet, your body burns fat instead of carbs or glucose. Sandy Bauers,, "Good fats, bad fats, and why the ketogenic diet matters," 13 July 2018 Tests proved him right. Spraying experimental rice plants with artificial acid rain immediately cut their release into the soil of three relevant bacterial foodstuffs—fumaric acid, galactose and glucose. The Economist, "A cheap way to save rice plants from the effects of acid rain," 12 July 2018 But frequent glucose measurements are essential to maintaining levels close to normal. Bradley J. Fikes,, "Quincy the San Diego Zoo's diabetic koala, gets help from Dexcom," 25 June 2018

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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Statistics for glucose

Last Updated

9 Oct 2018

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The first known use of glucose was in 1840

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English Language Learners Definition of glucose

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


glu·cose | \ˈglü-ˌkōs \

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 \

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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