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.
Pectin, a fiber found in apples and pears, forms a gel that slows gastric emptying and helps keep blood sugar levels steadier. Lauren Panoff, Verywell Health, 3 Apr. 2026 They are also packed with dietary fiber, which helps regulate blood sugar and keeps you feeling full. Lauren Manaker, SELF, 2 Apr. 2026 Affected staff would then be required to undergo further medical evaluation — including blood sugar and lipid profile tests — within seven days to assess potential health risks, NDTV reported. Jessica Mekles, FOXNews.com, 2 Apr. 2026 Insulin, for example, is a type of peptide produced by the pancreas that controls our blood sugar. Mary Walrath-Holdridge, USA Today, 1 Apr. 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 6 Apr. 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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