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specifically : a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable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

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

But the blood tests eventually come back negative, meaning Nuria (Maria Romanillos) and other athletes who took the drug are allowed to participate. —Barry Levitt, Time, 20 June 2025

According to multiple reports, Tuesday’s gross misdemeanor charge came one day after the results of a blood test taken the night Sherman was arrested were received from the Washington State Patrol Crime Lab. —Amos Morale Iii, New York Times, 18 June 2025

Similarly, the blood test developed by Notre Dame researchers only works in space, with no ability yet to simulate low gravity effectively here on Earth. —Tom Brown, Space.com, 13 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: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of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)