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

Example Sentences

Recent Examples on the Web To test this hypothesis, Hodos used a pattern electroretinogram laboratory test on birds—specifically, American kestrels.

Byian Mount, Fortune, 22 Nov. 2022 There is no definitive single laboratory test to confirm the diseases but multiple neurological exams, like an MRI, usually help physicians make a diagnosis.

CBS News, 19 Oct. 2022 Probable deaths include individuals who have COVID indicated as a cause of death on their death certificate but have not had a positive diagnostic laboratory test.

Lauren Wethington, Detroit Free Press, 11 May 2022 Then researchers at a laboratory test their blood samples for neutralizing antibodies against the whole array of variants — not just the one or two the vaccine was designed to attack.

New York Times, 19 Apr. 2022 Probable deaths include individuals who have COVID indicated as a cause of death on their death certificate but have not had a positive diagnostic laboratory test.

Lauren Wethington, Detroit Free Press, 11 May 2022 Probable deaths include individuals who have COVID indicated as a cause of death on their death certificate but have not had a positive diagnostic laboratory test.

Lauren Wethington, Detroit Free Press, 11 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'laboratory test.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1859, in the meaning defined above

Time Traveler

The first known use of laboratory test was in 1859

See more words from the same year

Dictionary Entries Near laboratory test

laboratory school

laboratory test

labor bank

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Cite this Entry

Style

“Laboratory test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laboratory%20test. Accessed 7 Dec. 2022.

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