confirmatory

Also con·firm·a·tive

[kuhn-fur-muh-tawr-ee]

adjective

1. serving to confirm; corroborative.

Other Word Forms

• nonconfirmative adjective
• nonconfirmatory adjective
• unconfirmative adjective
• unconfirmatory adjective

Word History and Origins

Origin of confirmatory¹

1630–40; < Medieval Latin confirmātōrius, equivalent to Latin confirmā ( re ) ( confirm ) + -tōrius -tory ¹

Example Sentences

But in 2022, it said it would withdraw the drug after it failed External link a required confirmatory trial.

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The best confirmatory follow-up turned out to be a second Galleri test—which is already Grail’s standard approach in its existing sales of Galleri under the FDA exemption for lab-developed blood tests.

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"I think the urgency and importance of doing the confirmatory work can't be overstated."

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In many cases, presumptive testing requires further confirmatory testing.

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“If Oropouche continues to circulate for a few more years and there is confirmatory evidence of birth defects in pregnant travelers then it is likely a vaccine will be prioritized.”

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Related Words

• ancillary