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.
Data from another midstage trial also presented Saturday, in patients with Type 2 diabetes, found that berobenatide helped patients manage their blood sugar levels. Berkeley Lovelace Jr, NBC news, 6 June 2026 Lilly previously said that in one late-stage study, called TRANSCEND-T2D-1, retatrutide helped people with diabetes lower blood sugar and lose a significant amount of weight, which is notable since those who have diabetes tend to lose less weight on treatment than those who don’t. Elaine Chen, STAT, 6 June 2026 In addition to being particularly high in inulin—a prebiotic fiber that supports gut health and blood sugar regulation. Cristina Mutchler, Verywell Health, 6 June 2026 Fiber slows digestion and helps reduce rapid rises in blood sugar after meals. Brianna Tobritzhofer, Health, 4 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 10 Jun. 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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