overthrust🔊nounEtymology From over- + thrust.1Geography, Geology, Natural sciences Ambitransitive A form of thrust fault from beneath a hanging wall of rock.
overthrust🔊verbEtymology From over- + thrust.1Geography, Geology, Natural sciences Of a body of rock: to force itself over another.
overthrust🔊adjEtymology From over- + thrust.1Geography, Geology, Natural sciences Belonging to earlier strata, pushed by faulting over later and higher strata.