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Synonyms

blood sugar

American  

noun

  1. glucose in the blood.

  2. the quantity or percentage of glucose in the blood.


blood sugar British  

noun

  1. med the glucose concentration in the blood: the normal fasting value is between 3.9 and 5.6 mmol/l

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

blood sugar Scientific  
  1. Sugar in the form of glucose in the blood. The concentration of blood sugar is measured in milligrams of glucose per 100 milliliters of blood.


Etymology

Origin of blood sugar

First recorded in 1925–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The research, published in Stem Cell Reports, shows that these lab-grown cells can effectively control blood sugar in tests and even reverse diabetes in mice.

From Science Daily • May 6, 2026

"We observed that the cells gradually matured after transplantation, retaining their ability to regulate blood sugar for several months, which demonstrates their potential for future treatments."

From Science Daily • May 6, 2026

Across seven completed Phase 3 studies, Foundayo had a similar liver safety profile to other medications that manage blood sugar, namely Faxiga, Rybelsus, and insulin, the spokesperson said.

From Barron's • May 4, 2026

A clinical trial for patients with Type 2 diabetes indicated Lilly’s pill was more effective at lowering blood sugar levels and weight reduction, though fewer people stayed on it.

From Barron's • Apr. 24, 2026

“If he doesn’t take his medication like he is supposed to, he will! Checking his blood sugar, eating a balanced diet—he doesn’t want to do any of this!”

From "When Dimple Met Rishi" by Sandhya Menon