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

Other Word Forms

Noun Inflected Forms

blood tests

plural

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.

See Examples For:

blood test

Medical experts I spoke with this week explained that MS can be difficult to identify because there is no one blood test to diagnose it, and it shares symptoms with other diseases.

From The Wall Street Journal ● Oct. 23, 2026

My dermatologist in Washington, D.C., didn’t even know a blood test could measure alpha-gal antibodies.

From Los Angeles Times ● Oct. 4, 2026

A single blood test taken at one moment could therefore capture a period when hormone levels appear relatively normal.

From Science Daily ● Sep. 14, 2026

The results of his blood test didn't raise an alert.

From BBC ● Sep. 12, 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

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