: occurring after an eruption (such as a volcanic eruption or the eruption of a tooth)
… directly involved in research on the posteruptive soils of Mount St. Helens …Fiorenzo C. Ugolini
posteruptive changes in tooth enamel

Word History

First Known Use

1930, in the meaning defined above

Time Traveler
The first known use of posteruptive was in 1930

Browse Nearby Words

Cite this Entry

“Posteruptive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/posteruptive. Accessed 8 Jul. 2026.

Medical Definition

posteruptive

adjective
: occurring or forming after eruption (as of the teeth)
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster