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

For now at least, terahertz medical devices will be useful only for surface imaging of things like skin cancer and tooth decay and laboratory tests on thin tissue samples. —IEEE Spectrum, 7 Mar. 2024

The most common side effects of Xolair are injection site reactions and fever, but the FDA noted that the drug has also been associated with joint pain, rash, parasitic infections, malignancies and abnormal laboratory tests. —Jonel Aleccia, Quartz, 16 Feb. 2024

Their routine office visits fell by 6%, imaging by 14% and laboratory tests by 9% relative to controls. —Barbara Mantel, NBC News, 6 Nov. 2023

The agency reviewed medical records and laboratory tests from the case and collected clinical samples and product samples for analysis. —Eric Berger, Ars Technica, 3 Oct. 2023

But Sion’s cells came from a pilot production line, not from a routine mass-scale operation, and QuantumScape’s claim was based on laboratory tests of single-layer cells, not on any commercially available multilayer products. —IEEE Spectrum, 29 Nov. 2022

Listeriosis may be diagnosed through a laboratory test on body tissue or fluid like blood, spinal fluid, or the placenta. —Korin Miller, Health, 21 Nov. 2023

That's mostly due to the cost of laboratory tests and medical visits. —Michael Scaturro | Kff Health News, ABC News, 7 Nov. 2023

After six months, laboratory tests confirmed there was no detectable E. coli in his prostate. —Popular Science, 12 Oct. 2023

Word History

First Known Use

1859, in the meaning defined above