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
Your body converts the nutrients from your food into glucose.
—
Julia Ries, Health, 9 Apr. 2025
Apple has reportedly been developing a silicon photonics chip that uses optical absorption spectroscopy to shine light from a laser under the skin to determine the concentration of glucose in the body.
—Ewan Spence, Forbes.com, 4 Apr. 2025
Carbohydrates are the body's primary energy source, raising blood glucose levels for quick energy.
—Elizabeth Barnes, Verywell Health, 3 Apr. 2025
For example, who knows how sleep impacts your glucose levels better than the person who tracks it every day?
—Alysse Dalessandro, Health, 29 Mar. 2025
See All Example Sentences for glucose
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Julia Ries, Health, 9 Apr. 2025
Apple has reportedly been developing a silicon photonics chip that uses optical absorption spectroscopy to shine light from a laser under the skin to determine the concentration of glucose in the body.
—Ewan Spence, Forbes.com, 4 Apr. 2025
Carbohydrates are the body's primary energy source, raising blood glucose levels for quick energy.
—Elizabeth Barnes, Verywell Health, 3 Apr. 2025
For example, who knows how sleep impacts your glucose levels better than the person who tracks it every day?
—Alysse Dalessandro, Health, 29 Mar. 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 14 Apr. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share