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.
People with Type 1 diabetes are unable to produce insulin, a hormone responsible for regulating blood sugar and supplying cells with glucose for energy. Noah Lyons, San Diego Union-Tribune, 8 May 2026 Adding mango to meals and snacks can reduce its impact on blood sugar, especially if those meals and snacks are high in protein, fiber, and healthy fats. Jillian Kubala, Health, 8 May 2026 Some adaptogens can interact with blood pressure, blood sugar or thyroid medications. Ryan Brennan, Charlotte Observer, 7 May 2026 Helps normalize blood sugar, blood pressure, and lipid levels while protecting against chemical and metabolic stress. Ryan Brennan may 6, Fort Worth Star-Telegram, 6 May 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 May. 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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