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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.

See Examples For:

The growing popularity of GLP-1 medications such as Ozempic, Wegovy, and Rybelsus has largely been driven by their ability to help people lose weight, improve blood sugar control, and reduce the risk of cardiovascular disease.

From Science Daily Jul. 14, 2026

A new type of daily pill has proven more effective for weight loss and blood sugar control than its currently available counterparts, according to a recent trial.

From Science Daily Jul. 8, 2026

The professor of cell biology leading the study, Alejandra Tomas Catala, is studying how gut hormones regulate fullness, blood sugar and behavior to see how GLP-1s can help treat conditions including eating disorders.

From The Wall Street Journal Jul. 8, 2026

We are more likely to develop the “metabolic syndrome”—a group of conditions that includes excess abdominal fat, high blood pressure, high blood sugar, and abnormal cholesterol.

From Barron's Jun. 27, 2026

Fig’s blood sugar was still too high, so Dr. Spires had increased his daily insulin amount.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

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