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.
Weight-loss and diabetes drugs such as Ozempic, Wegovy and Zepbound may do more than help patients manage blood sugar and obesity, according to new research led by the Cleveland Clinic. Anthony Thompson, USA Today, 23 May 2026 Knowing what foods spike blood sugar — and which ones quietly slip past your radar — matters because the culprits aren’t always the sweet stuff. Samantha Agate, Miami Herald, 23 May 2026 Starches break down into glucose in the body, which is why foods like white potatoes, white bread, white rice and pasta can spike blood sugar even higher than some desserts. Samantha Agate, Fort Worth Star-Telegram, 23 May 2026 Your Blood Sugar Becomes Steadier Consuming oats may regulate blood sugar. Lauren Manaker Ms, Health, 22 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 26 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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