blood sugar

noun

: the glucose in the blood
also : its concentration (as in milligrams per 100 milliliters)

Examples of blood sugar in a Sentence

As a diabetic, he needs his blood sugar to stay at the right levels.
Recent Examples on the Web
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.
Managing blood pressure, cholesterol and blood sugar matters, as does maintaining a healthy weight, regular physical activity and good nutrition. Katia Hetter, CNN Money, 6 Feb. 2026 That's because whole-grain cereals provide fiber, which supports digestion, helps stabilize blood sugar and promotes fullness. Daryl Austin, USA Today, 6 Feb. 2026 Sugar alcohols contain fewer calories and are slowly digested, helping prevent sharp spikes in blood sugar. Stephanie Brown, Verywell Health, 6 Feb. 2026 Important areas, such as sleep, blood sugar, and strength, can benefit from simple, intentional tweaks. Jenna Anderson, Health, 6 Feb. 2026 See All Example Sentences for blood sugar

Word History

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of blood sugar was in 1881

Browse Nearby Words

Cite this Entry

“Blood sugar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood%20sugar. Accessed 11 Feb. 2026.

Kids Definition

blood sugar

noun
: the glucose in the blood
especially : the amount or percentage of such sugar

Medical Definition

blood sugar

noun
: the glucose in the blood
also : its concentration (as in milligrams per 100 milliliters)
Last Updated: - Updated example sentences
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