underthrust

verb

un·​der·​thrust ˌən-dər-ˈthrəst How to pronounce underthrust (audio)
underthrust; underthrusting

transitive verb

: to insert (a faulted rock mass) into position under a passive rock mass

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of underthrust was in 1893

Dictionary Entries Near underthrust

Cite this Entry

“Underthrust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underthrust. Accessed 24 Dec. 2024.

Love words? Need even more definitions?

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