laboratory test

noun

variants or lab test

: a test conducted under controlled scientific conditions in a laboratory or similar setting

… in laboratory tests of acyclovir, herpes strains have mutated to forms resistant to the drug.

—Linda Garmon

We've measured the amount of soap in shampoos and used lab tests to determine cleaning action and pH.

—Consumer Reports

specifically, medical : a test (such as a blood test or urinalysis procedure) performed by a medical laboratory on a specimen taken from a patient

Even experienced doctors cannot distinguish "strep" throat from other-caused sore throats without a laboratory test of fluid taken from the throat.

—Melva Weber

Those two values are seen with a complete blood count, the lab test that enumerates the number of white and red blood cells.

—Paul G. Donahue

laboratory testing noun

or less commonly lab testing

… it has survived nearly two years of strenuous independent laboratory testing and been certified safe for home and commercial use.

—Harper's

Examples of laboratory test in a Sentence

Recent Examples on the Web

Medical records are now almost always digitized, permitting doctors’ notes, medical imaging, laboratory tests, insurance claims, and more to be linked (in theory) across doctors’ offices, hospitals, nursing homes, and any other place people receive care. —Christopher M. Worsham, Time, 9 June 2025

The commercial laboratory tests or titer tests are most useful for people who don’t know their vaccination status, experts say. —Neha Mukherjee, CNN, 13 Feb. 2025

Grafton’s laboratory test results showed otherwise. —Lindsey Leake, NBC news, 27 May 2025

Key Background Alzheimer’s diagnosis can be a lengthy process consisting of memory testing, laboratory tests, brain-imaging examinations and more. —Antonio Pequeño Iv, Forbes.com, 16 May 2025

Word History

First Known Use

1859, in the meaning defined above

Rhymes for laboratory test

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