laboratory test

variants: or lab test

Definition of laboratory 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

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Other Words from laboratory test

laboratory testing or less commonly lab testing noun
… 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 2% figure seemed stable on Feb. 24, when a massive study of nearly 45,000 Chinese patients whose infections had been confirmed with laboratory tests reported a case fatality rate of 2.3%. Los Angeles Times, "What is the fatality rate for the new coronavirus, and why does it keep changing?," 7 Mar. 2020 Fears of blue light have been stoked by laboratory tests that have shown that blue light at high levels — higher than that emitted by screens — can damage human cells. Washington Post, "Blue-light glasses won’t save you from digital eyestrain," 5 Mar. 2020 Its conclusion from laboratory tests was that UVA rays, which are thought to be less damaging to healthy cells than UVC rays, killed digestive system bacteria. Los Angeles Times, "Column: How Cedars-Sinai got sucked into the battle over Trump’s claim of a COVID-19 treatment," 1 May 2020 At least 26 of those deaths were confirmed by laboratory tests to be related to COVID-19, the newspaper said., "Home restrictions on New Yorkers extended another month," 16 Apr. 2020 In laboratory tests, it has been shown to block the coronavirus from invading cells, although it hasn’t been proven in human trials. Katie Thomas, New York Times, "Trump Calls This Drug a ‘Game Changer.’ Doctors Aren’t So Sure.," 11 Apr. 2020 Up to 80 percent of the 150,000 rapid coronavirus test kits China delivered to the Czech Republic in March were also faulty and less accurate than other tests, forcing the Czech Republic to continue to rely on conventional laboratory tests. Barnini Chakraborty, Fox News, "Countries criticize China for sending – and resending – faulty COVID-19 test kits, supplies," 23 Apr. 2020 Much of the problem has been blamed on issues with how samples for the main laboratory tests are collected. Matthew Herper, STAT, "Rapid coronavirus test, commonly used in U.S., may miss infections in some situations," 16 Apr. 2020 Al Qaeda and Islamic extremism seemed like the invisible enemy, and there was no lab laboratory test for a terrorism gene. Richard Stengel, Time, "The Coronavirus Pandemic Can Lead Us to a Smarter Future. Let's Make Sure It Does.," 13 Apr. 2020

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.

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First Known Use of laboratory test

1859, in the meaning defined above

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Time Traveler for laboratory test

Time Traveler

The first known use of laboratory test was in 1859

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Statistics for laboratory test

Last Updated

27 May 2020

Cite this Entry

“Laboratory test.” Dictionary, Merriam-Webster, Accessed 3 Jul. 2020.

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