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.

Each person completed a simple finger-prick blood test, and the samples were analyzed by a specialist laboratory.

From Science Daily • Jun. 24, 2026

Another blood test that measures p-tau217 can detect early changes linked to the buildup of abnormal proteins in the brain, but it’s used mainly in symptomatic patients and in research, not for screening healthy people.

From The Wall Street Journal • Jun. 14, 2026

Another blood test for cancer gives doctors an early read on how thoroughly their treatments have removed the disease.

From Barron's • Jun. 5, 2026

“Don’t think of the blood test as an easy way out.”

From MarketWatch • Jun. 4, 2026

If there are large numbers of people having the blood test, the medical director would be wise to take part of each sample, pool it, and test this pooled sample first.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos

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