confirmatory

[ kuhn-fur-muh-tawr-ee ]

adjective

1. serving to confirm; corroborative.

Other Words From

• non·con·firm·a·tive adjective
• non·con·firm·a·to·ry adjective
• un·con·firm·a·tive adjective
• un·con·firm·a·to·ry 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 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

Delegates will not be able to change votes they cast in the virtual process, the party planning instead to hold a “ceremonial and confirmatory” roll vote in person at the DNC.

From Salon

“First and foremost, there has to be mandatory confirmatory testing on a random basis,” said Tiffany Devitt, acting as spokesperson for the March & Ash cannabis retail chain.

From Los Angeles Times

Such diagnostic pitfalls are less likely with the more definitive confirmatory test that uses rat brain slices.

From Science Magazine

Kuchipudi’s lab later found evidence of antibodies in two sheep, but they are still running confirmatory tests.

From Science Magazine

Related Words

• ancillary