confirmatory
Americanadjective
Other Word Forms
Etymology
Origin of confirmatory
1630–40; < Medieval Latin confirmātōrius, equivalent to Latin confirmā ( re ) ( see confirm) + -tōrius -tory 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The FDA quickly reversed course, agreeing to review Moderna’s application after the company agreed to another confirmatory study in an older age group.
From The Wall Street Journal ● Mar. 6, 2026
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.
From Barron's ● Oct. 22, 2025
"I think the urgency and importance of doing the confirmatory work can't be overstated."
From Science Daily ● Oct. 19, 2025
In many cases, presumptive testing requires further confirmatory testing.
From Los Angeles Times ● Apr. 29, 2025
“Of course not” laughed Robert “Of course not” echoed Mariequita, with a serious, confirmatory bob of the head.
From "The Awakening" by Kate Chopin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
