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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Companies in diabetes management, such as those offering continuous glucose monitoring systems or smart insulin pens, exemplify how subscription models can enhance clinical outcomes and drive sustained engagement.
—
Ross Meyercord, Forbes.com, 28 May 2025
Downing Sugary Beverages All Day Your morning coffee isn’t the only blood sugar saboteur—sipping on sodas, chocolate milk, and fruit juices throughout the day can also spike your glucose.
—Jillian Kubala, Health, 26 May 2025
At the same time, your body stores the unused glucose as fat, which can prompt weight gain, Dr. Boots says.
—Erica Sloan, SELF, 20 May 2025
During exercise, your muscle cells can more easily use the glucose in your blood.
—Hilary Achauer, New York Times, 19 May 2025
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Ross Meyercord, Forbes.com, 28 May 2025
Downing Sugary Beverages All Day Your morning coffee isn’t the only blood sugar saboteur—sipping on sodas, chocolate milk, and fruit juices throughout the day can also spike your glucose.
—Jillian Kubala, Health, 26 May 2025
At the same time, your body stores the unused glucose as fat, which can prompt weight gain, Dr. Boots says.
—Erica Sloan, SELF, 20 May 2025
During exercise, your muscle cells can more easily use the glucose in your blood.
—Hilary Achauer, New York Times, 19 May 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 4 Jun. 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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