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
Linda GarmonWe've measured the amount of soap in shampoos and used lab tests to determine cleaning action and pH.—Consumer Reports
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
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
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
Harper's
Examples of laboratory test in a Sentence
Recent Examples on the Web
Key Background Alzheimer’s diagnosis can be a lengthy process consisting of memory testing, laboratory tests, brain-imaging examinations and more.
—Antonio Pequeño Iv, Forbes.com, 16 May 2025
The Vatican said the mucus was his body’s reaction to the original pneumonia infection and not a new infection, given laboratory tests don’t indicate any new bacteria.
—Nicole Winfield, Chicago Tribune, 3 Mar. 2025
Markers of inflammation in his blood spiked to levels that laboratory tests had difficulty measuring—thousands of per cent above normal, which suggested an extreme stress response.
—Dhruv Khullar, The New Yorker, 10 Feb. 2025
This article was updated with information about OCME laboratory test results.
—Jon Blistein, Rolling Stone, 16 Apr. 2025
See All Example Sentences for laboratory test
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Antonio Pequeño Iv, Forbes.com, 16 May 2025
The Vatican said the mucus was his body’s reaction to the original pneumonia infection and not a new infection, given laboratory tests don’t indicate any new bacteria.
—Nicole Winfield, Chicago Tribune, 3 Mar. 2025
Markers of inflammation in his blood spiked to levels that laboratory tests had difficulty measuring—thousands of per cent above normal, which suggested an extreme stress response.
—Dhruv Khullar, The New Yorker, 10 Feb. 2025
This article was updated with information about OCME laboratory test results.
—Jon Blistein, Rolling Stone, 16 Apr. 2025
See All Example Sentences for laboratory test
Cite this Entry
“Laboratory test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laboratory%20test. Accessed 28 May. 2025.
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