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

In many cases, presumptive testing requires further confirmatory testing.

From Los Angeles Times

“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.”

From Salon

First, people who are flagged by the opportunistic screening as potentially having a disease will likely need further confirmatory testing, which takes resources.

From BBC

But it’s unclear whether the National Veterinary Surveillance Laboratory in Ames, Iowa — where confirmatory testing for bird flu in animals is currently taking place — will stay open.

From Los Angeles Times

“In my research, I found the error rate is one in 200,” he said, and added that a second, confirmatory test in such cases was “absolutely vital”.

From BBC

Related Words

• ancillary