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 is key for supporting digestion and balancing blood sugar, while potassium is needed for lowering blood pressure, says Elick. Kirsten Nunez, Martha Stewart, 31 Aug. 2026 Improving insulin sensitivity through intermittent fasting can slow brain aging and help regulate blood sugar levels. Teresa Maalouf, Verywell Health, 30 Aug. 2026 Another spice studied for its effect on blood sugar is turmeric. Gavin Escott, USA Today, 27 Aug. 2026 Among those benefits are lower blood pressure and blood sugar, reduced cholesterol and decreased risk for type 2 diabetes and cardiovascular disease. Adam Cohen, Oklahoman, 25 Aug. 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 1 Sep. 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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