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

The blood sugar angle gives the trend genuine preventive-health stakes. — Hanna Wickes, Fort Worth Star-Telegram, 24 Sep. 2026

Adding them to a balanced diet may benefit heart health, blood sugar control, digestion, and weight management. — Lindsey Desoto, HEALTH, 23 Sep. 2026

These include eating a healthy diet, being active, not using tobacco, getting good quality sleep and managing factors such as weight, cholesterol, blood pressure and blood sugar. — Taylor Nicioli, CNN Money, 23 Sep. 2026

The company already has two Phase 3 weight loss studies ongoing and is planning on starting another pivotal trial next year looking at blood sugar control and cardiovascular outcomes. — Elaine Chen, STAT, 22 Sep. 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)