underthrust
verb
un·der·thrust
ˌən-dər-ˈthrəst 
underthrust; underthrusting
: to insert (a faulted rock mass) into position under a passive rock mass
Cite this Entry
“Underthrust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underthrust. Accessed 3 Jul. 2025.
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