blood test

noun

: a test of the blood

specifically : a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of a particular disease or medical condition (such as diabetes, cardiovascular disease, or cancer) or serve to indicate the degree of function of a specific organ (such as the liver or kidney)

Examples of blood test in a Sentence

He had a blood test, and the doctor who did it said his cholesterol was too high.

Recent Examples on the Web

At the hospital, Goss allegedly declined to submit to a blood test shortly before 1 a.m. —Robert A. Cronkleton, Kansas City Star, 25 June 2025

But a year ago, the ransomware attack prevented local hospitals from accessing blood test results and performing blood transfusions, forcing medical staff to deplete universal blood supplies. —Michael Kan, PC Magazine, 25 June 2025

Tim, meanwhile, gets a blood test and colonoscopy each offseason. —Gary Phillips, New York Daily News, 15 June 2025

But after undergoing a free screening for people over 60 in May 2023, a routine blood test showed that his average blood sugar level was 6.2% — an indicator of pre-diabetes, according to SWNS. —Reem Amro, FOXNews.com, 21 June 2025

Word History

First Known Use

1851, in the meaning defined above

Rhymes for blood test

• abreast
• accessed
• addressed
• appressed
• armrest
• arrest
• assessed
• attest
• backrest
• behest
• bequest
• caressed

Kids Definition

blood test

noun

: a test of the blood (as to detect the presence of disease-causing agents or determine the number of blood cells)

Medical Definition

blood test

noun

: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of a particular disease or medical condition (as diabetes, cardiovascular disease, or cancer) or serve to indicate the degree of function of a specific organ (as the liver or kidney)