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.
However, walking after meals improves metabolic health and blood sugar regulation. Ezekiel J. Emanuel, Fortune, 21 June 2026 The slower digestion may lead to steadier blood sugar levels compared to white bread. Jillian Kubala, Health, 21 June 2026 May lower blood sugar when taken in a supplement form. Cory Martin, Verywell Health, 21 June 2026 Semen quality, weight and BMI, cholesterol and blood sugar were also measured. Angelica Stabile, FOXNews.com, 20 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 23 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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