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

Subsequent laboratory tests confirmed extensive disruption of the clotting system, which reflects just how powerful the procoagulant toxins present within the venom are. —Scott Travers, Forbes.com, 12 June 2026

In laboratory tests involving eight volunteers, the wristband reproduced hand gestures with high accuracy and low latency, mirroring movements within 120 milliseconds. —Jijo Malayil, Interesting Engineering, 10 June 2026

The chemical has killed human cells and damaged DNA in laboratory tests. —Sandee Lamotte, CNN Money, 9 June 2026

Following laboratory tests, solutions that pass receive certification. —Sarah Jones, Footwear News, 29 May 2026

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