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
His comments sent shares of Abbott Laboratories and other continuous glucose monitor (CGM) device makers higher.
—
Jeff Marks,kevin Stankiewicz, CNBC, 24 June 2025
So far, the administration has ended or delayed nearly 2,500 NIH grants, including some related to researching blood glucose.
—Olga Khazan, The Atlantic, 19 June 2025
The evidence has been mixed, but one review of 10 different studies suggests that cinnamon lowers both fasting blood glucose and total cholesterol.6
A 2021 review suggested that cinnamon may improve insulin sensitivity, regulate how the body processes glucose, and reduce inflammation.
—Karen Shackelford, Verywell Health, 17 June 2025
Research shows that insufficient sleep disrupts hunger signals, weakens self-control, impairs glucose metabolism and increases your risk of weight gain.
—Joanna Fong-Isariyawongse, The Conversation, 16 June 2025
See All Example Sentences for glucose
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Jeff Marks,kevin Stankiewicz, CNBC, 24 June 2025
So far, the administration has ended or delayed nearly 2,500 NIH grants, including some related to researching blood glucose.
—Olga Khazan, The Atlantic, 19 June 2025
The evidence has been mixed, but one review of 10 different studies suggests that cinnamon lowers both fasting blood glucose and total cholesterol.6
A 2021 review suggested that cinnamon may improve insulin sensitivity, regulate how the body processes glucose, and reduce inflammation.
—Karen Shackelford, Verywell Health, 17 June 2025
Research shows that insufficient sleep disrupts hunger signals, weakens self-control, impairs glucose metabolism and increases your risk of weight gain.
—Joanna Fong-Isariyawongse, The Conversation, 16 June 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 9 Jul. 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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