laboratory test

noun
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

Results were delayed about five months to allow time for a complete battery of laboratory tests for unusual poisons and drugs, officials said. Ken Ritter, The Seattle Times, "Autopsy finds heart attack killed famed Nevada brothel owner," 29 Mar. 2019 This means that prevalence rates of the disease are always only estimates, with only a fraction of patients confirmed by laboratory test as actually harboring the virus. William F. Bynum, WSJ, "‘Pandemic 1918’ and ‘Influenza’ Review: Fire, Ice or Virus?," 4 Jan. 2019 For one thing, keeping patients out of hospitals requires frequent examinations and speedy laboratory tests — all of which add costs to nursing homes. Jordan Rau, Washington Post, "Medicare Takes Aim At Boomerang Hospitalizations Of Nursing Home Patients," 13 June 2018 The complaint cites a Mississippi State University laboratory test conducted in December that showed that the seeds the farmers bought were dormant. Kristine Phillips, chicagotribune.com, "Black soybean farmers say they were deliberately sold defective seeds because of their race," 12 July 2018 But laboratory tests came up negative for Zika and other related infections, leaving doctors to puzzle over what had made the boy ill. Brigit Katz, Smithsonian, "Mosquito-Borne Keystone Virus Has Been Found in Humans for the First Time," 26 June 2018 One month after the first human case of the plague since 1992 was reported in Elmore County, laboratory tests indicate a cat in Elmore County was also infected with the plague. Christina Lords, idahostatesman, "SW Idaho cat infected in problem area known for previous plague cases," 26 June 2018 An original laboratory test showed no evidence of asbestos, the company explained in a statement, however a second round revealed small amounts of the dangerous mineral. Marci Robin, Good Housekeeping, "UPDATE: Justice Has Just Announced a Recall of 8 Makeup Products Due to Asbestos Concerns," 1 Feb. 2018 For one thing, keeping patients out of hospitals requires frequent examinations and speedy laboratory tests all of which add costs to nursing homes. Jordan Rau, chicagotribune.com, "Medicare takes aim at boomerang hospitalizations of nursing home patients," 22 June 2018

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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Statistics for laboratory test

Last Updated

16 Apr 2019

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The first known use of laboratory test was in 1859

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