Definition of blood test
: a test of the blood; specifically : a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of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)
Examples of blood test in a sentence
He had a blood test, and the doctor who did it said his cholesterol was too high.
First Known Use of blood test
BLOOD TEST Defined for English Language Learners
Definition of blood test for English Language Learners
: a test of the blood especially to learn if a person has any diseases or conditions (such as AIDS or high cholesterol)
Medical Definition of blood test
: a test of the blood (as a serological test for syphilis)
Seen and Heard
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