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

Join 2 others in the comments View Comments As part of TIE’s research, independent laboratory tests were carried out on the products the group bought, which included a baby teething toy that could easily break into small parts, posing a risk of choking. —Anna Cooban, CNN, 17 Oct. 2024

While additional laboratory tests have been carried out to confirm the cause of death, there are currently no other causes. —Gabrielle Rockson, Peoplemag, 3 Sep. 2024

Employees told the Free Press that ambulances had to be diverted to other hospitals, its pharmacies were crippled, some procedures were rescheduled and there were delays in results from imaging and laboratory tests. —Kristen Jordan Shamus, Detroit Free Press, 9 Aug. 2024

As with any laboratory test, there is a tradeoff between repeatability and realism. —Seb Stott, Outside Online, 6 Aug. 2024

Word History

First Known Use

1859, in the meaning defined above