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

Walking after a meal is a great way to stabilize blood sugar and can help offset the harms of sitting. — Allison Aubrey, NPR, 13 July 2026

Baltimore Ravens tight end Mark Andrews, diagnosed in childhood, frequently checks his blood sugar levels during games. — ABC News, 11 July 2026

Choosing sugar alcohols or artificial sweeteners over sugar may help with blood sugar management and other aspects of health. — Brittany Lubeck, Verywell Health, 10 July 2026

That link held even after researchers adjusted for weight and blood sugar. — Allison Palmer, Kansas City Star, 9 July 2026

Word History

First Known Use

1881, in the meaning defined above

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)