con·​fir·​ma·​to·​ry | \ kən-ˈfər-mə-ˌtȯr-ē How to pronounce confirmatory (audio) \

Definition of confirmatory

: serving to confirm : corroborative a confirmatory test

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Examples of confirmatory in a Sentence

a confirmatory test for pregnancy
Recent Examples on the Web Out of 360 Abbott test results checked through Friday, one negative test came back positive during confirmatory testing, Jilly said. USA TODAY, "Milk giveaway, ‘Pass the pork,’ famous rodeo foiled: News from around our 50 states," 28 May 2020 Despite the existing tests for diagnostic and prognostic biomarkers, few patients in the U.S. have been tested with these confirmatory tests because of cost and access restrictions. Howard M. Fillit, Scientific American, "Better Biomarkers Could Help Us Treat Alzheimer’s," 1 Feb. 2019 The first assay is Rs1,500 ($20) and subsequent, confirmatory assays can cost another Rs3,000. Ananya Bhattacharya, Quartz India, "This map shows why India urgently needs more Covid-19 testing centres," 17 Mar. 2020 The White House is aware of public reports that a member of the Brazilian delegation‘s visit to Mar-a-Lago last weekend tested positive for COVID-19; confirmatory testing is pending. Madison Dibble, Washington Examiner, "Coronavirus touches Trump?: Brazilian president denies testing positive for COVID-19," 13 Mar. 2020 Although a dozen states are capable of testing for coronavirus infection, confirmatory tests must still be done by the C.D.C., a process that can take days. Roni Caryn Rabin, New York Times, "C.D.C. Confirms First Possible Community Transmission of Coronavirus in U.S.," 10 Mar. 2020 The presumptive positive result came from a sample tested by the New Jersey Department of Health and is now being submitted to the U.S. Centers for Disease Control and Prevention for confirmatory testing. Morgan Winsor, ABC News, "Coronavirus live updates: Positive cases in US climb as multiple countries report 1st deaths," 5 Mar. 2020 Pro-actively seeks feedback from peers and managers 1 The Performance Review almost always ignores cognitive traps that may be coloring an evaluator’s judgment of a direct report, including recency, halo, and confirmatory biases. Lila Maclellan, Quartz at Work, "The Performance Review gets its annual performance review," 11 Feb. 2020 Proper protocol for a positive urine drug screen is a second confirmatory test, according to the U.S. Substance Abuse and Mental Health Services Administration. Anna Claire Vollers |, al, "New moms in Alabama face suspicion over error-prone drug screens," 9 Feb. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'confirmatory.' 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 confirmatory

1636, in the meaning defined above

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Time Traveler for confirmatory

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The first known use of confirmatory was in 1636

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Cite this Entry

“Confirmatory.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2020.

More from Merriam-Webster on confirmatory

Thesaurus: All synonyms and antonyms for confirmatory

Britannica English: Translation of confirmatory for Arabic Speakers

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