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
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Related Articles Magid: Testing prescription, over-the-counter continuous glucose monitors
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The robot did a pretty good job at vacuuming and mopping.
—
Larry Magid, The Mercury News, 13 Feb. 2025
One small study using continuous glucose monitors found even athletes with high rates of energy expenditure can spend long periods with blood sugar levels that would be classified as pre-diabetic.
—Matthew Kadey, Outside Online, 8 Feb. 2025
In an insulin pump, for example, data at rest is when the pump is gathering information about a patient’s glucose level.
—IEEE Spectrum, 7 Feb. 2025
Unlike glucose, fructose does not trigger a strong insulin response or promote satiety, which may lead to overeating.
—Stephanie Brown, Verywell Health, 5 Feb. 2025
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Larry Magid, The Mercury News, 13 Feb. 2025
One small study using continuous glucose monitors found even athletes with high rates of energy expenditure can spend long periods with blood sugar levels that would be classified as pre-diabetic.
—Matthew Kadey, Outside Online, 8 Feb. 2025
In an insulin pump, for example, data at rest is when the pump is gathering information about a patient’s glucose level.
—IEEE Spectrum, 7 Feb. 2025
Unlike glucose, fructose does not trigger a strong insulin response or promote satiety, which may lead to overeating.
—Stephanie Brown, Verywell Health, 5 Feb. 2025
See All Example Sentences for glucose
Cite this Entry
“Glucose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glucose. Accessed 27 Feb. 2025.
Copy CitationKids Definition
glucose
noun
glu·cose
ˈglü-ˌkōs 
: a sugar that occurs especially in a naturally occurring form that is found in plants, fruits, and blood and is a source of energy for living things
Medical Definition
glucose
noun
glu·cose
ˈglü-ˌkōs, -ˌkōz
: 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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