blood sugar
Americannoun
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glucose in the blood.
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the quantity or percentage of glucose in the blood.
noun
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.
She also experienced very low energy, hair loss, severe dizziness, fainting spells from low blood sugar and brain fog.
From The Wall Street Journal ● Jul. 20, 2026
They are digested quickly and can produce sharp increases in blood sugar.
From Science Daily ● Jul. 18, 2026
People with diabetes may use sugar substitutes more frequently because they are often advised to limit products that rapidly raise blood sugar.
From Science Daily ● Jul. 18, 2026
More rarely, people can get more serious complications, like low blood sugar, pancreatitis or severe allergic reactions.
From BBC ● Jul. 6, 2026
He told her she needed to educate herself, learn the warning signs, know how to bring down her blood pressure and control her blood sugar.
From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
