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.
Fiber supports everything from digestion and gut health to blood sugar and heart health, yet most of us aren't getting nearly enough. Mura Dominko, Martha Stewart, 29 June 2026 Consistent walking provides additional benefits for heart health, cholesterol, weight, and blood sugar control. Laura Schober, Health, 29 June 2026 The higher resistant starch content means greener bananas tend to be less sweet and may have a gentler effect on blood sugar levels, Manaker said. Kelly McGreal, FOXNews.com, 27 June 2026 GLP-1s help regulate blood sugar and improve insulin sensitivity, which may lower some of the signals cancer cells can use to grow. Elise M. Brett, EverydayHealth.com, 26 June 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 4 Jul. 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)
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