1 underthrust | Definition of underthrust

underthrust

verb
un·​der·​thrust | \ ˌən-dÉ™r-ˈthrÉ™st 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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