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

The company said in a statement Wednesday that laboratory tests had identified Clostridium botulinum spores in samples of its formula. —Aria Bendix, NBC news, 22 Nov. 2025

Health care providers—from primary health care clinics to hospitals—must be able to identify the signs of severe diseases early, confirm diagnoses using laboratory tests and refer patients for timely care. —Jarbas Barbosa, MSNBC Newsweek, 17 Nov. 2025

Featuring a trilobal cross-sectioning, the carbon-neutral fiber reportedly outperformed conventional viscose during Syngina values, a standardized laboratory test method used to measure the absorbency of tampons. —Alexandra Harrell, Sourcing Journal, 14 Nov. 2025

Safety and tolerability were assessed by monitoring of adverse events, vital signs, clinical laboratory tests and systemic perfluorodecalin exposure. —New Atlas, 20 Oct. 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