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

This improved insulin sensitivity can aid in maintaining normal blood sugar levels, which is crucial for both type 1 and type 2 diabetes management. —Tribune Content Agency, Mercury News, 22 Apr. 2025

Foods that cause a quick increase in blood sugar may raise the risk of obesity and type 2 diabetes.13 Healthier options include: Brown rice Cauliflower rice Quinoa 8. —Carrie Madormo, Rn, Mph, Verywell Health, 21 Apr. 2025

Originally Published: April 17, 2025 at 1:47 PM PDT Most Popular Most Popular Older people may not need to watch blood sugar so closely Older people may not need to watch blood sugar so closely Opinion: Monday’s earthquake was a warning. —Phillip Molnar, San Diego Union-Tribune, 17 Apr. 2025

Though some glucose-experts disagree, Merkel says oatmeal is a safe option for those wishing to keep their blood sugar in check. —Philipp Wehsack, Vogue, 17 Apr. 2025

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)