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blood test

American

noun

a test of a sample of blood to determine blood group, presence of infection or other pathological condition, parentage, etc.

blood test British

noun

analysis of a blood sample to determine blood group, alcohol concentration, etc

"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

Etymology

Origin of blood test

First recorded in 1910–15

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.

Francois Blanchecotte, president of France's Federation of Medical Laboratories, said the urine test -- and possibly blood test -- would be able to determine if someone suffered from a "significant chronic intoxication".

From Barron's • May 13, 2026

In 2018, around 10,000 patients in Sydney were asked to get a blood test after potential HIV and hepatitis exposure at a dental clinic in Haberfield.

From BBC • May 13, 2026

My first symptoms were a crushing fatigue, leading to a doctor’s visit and a blood test.

From The Wall Street Journal • Apr. 19, 2026

The Sacramento district attorney’s office declined to file charges after a blood test showed there were no traces of drugs or alcohol in her system.

From Los Angeles Times • Apr. 7, 2026

He went to a doctor and requested a cursory, nonintrusive examination, but was told that only a blood test would enable the doctor to evaluate his kidney function.

From "Endgame" by Frank Brady

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023