underthrust

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

Definition of underthrust

transitive verb

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

First Known Use of underthrust

1893, in the meaning defined above

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The first known use of underthrust was in 1893

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Cite this Entry

“Underthrust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underthrust. Accessed 7 Mar. 2021.

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