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
Recent Examples on the Web
//The volunteers collect leaves from California bay laurels, which are the biggest transmitters of the affliction, known scientifically as Phytophthora ramorum, and the Berkeley laboratory tests them for infection.
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Peter Fimrite, SFChronicle.com, "Sudden oak death spreading fast, California’s coastal forests facing devastation," 7 Nov. 2019
//An additional 48 new laboratory tests of samples from Johnson's Baby Powder recalled earlier this month also confirmed the product doesn't contain asbestos, the company added.
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Kate Gibson, CBS News, "Johnson & Johnson says 15 tests show no asbestos in baby powder," 29 Oct. 2019
//Much of the coffee sold nationally as Kona fails a laboratory test for what the growers say are the telltale chemical signatures of the real stuff.
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Los Angeles Times, "The Kona coffee you buy from Costco and Walmart? It might be fake," 15 Sep. 2019
//On Wednesday, the Massachusetts medical examiner’s office, which had been awaiting the results of laboratory tests, ruled the death a suicide by hanging.
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Sam Roberts, New York Times, "Martin Weitzman, Virtuoso Climate Change Economist, Dies at 77," 4 Sep. 2019
//Virginia health officials noted that laboratory tests identified a variety of causes of the outbreaks, including pathogens for Legionnaire’s disease, flu, the common cold and pertussis, or whooping cough.
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Washington Post, "Virginia reports higher-than-usual number of respiratory illnesses," 3 Aug. 2019
//Ongoing research at Stanford and Columbia focusses on pinpointing the causes of the illness and on developing laboratory tests to diagnose it.
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Mike Mariani, The New Yorker, "A Town for People with Chronic Fatigue," 3 Sep. 2019
//Probable cases are those who have symptoms of the disease but have not yet had a laboratory test to confirm it.
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Jacqueline Howard, CNN, "Deadly Legionnaires' outbreak at Atlanta hotel is the largest on record in Georgia," 11 Aug. 2019
//Like many laboratory tests, the parameters of this study didn’t exactly match the real world.
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Sara Harrison, WIRED, "Vaping May Harm Your Blood Flow—Even Without Nicotine," 20 Aug. 2019
First Known Use of laboratory test
1859, in the meaning defined above
Dictionary Entries near laboratory test