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upthrust

/ʌpˈθrʌst/
noun
  1. A strong upward push or movement, especially in geology or mechanics.
    • The rocket's upthrust lifted it off the launch pad.
    • The upthrust of the tectonic plates created a new mountain range.
    • Geologists studied the upthrust of rock along the fault line.
Antonyms
subsidence
verb
  1. To push or force upward.
    • The jack upthrusts the car so the tire can be changed.
    • The strong current upthrusts the boat toward the surface.
    • The magma upthrusts the earth's crust, forming volcanoes.
Synonyms
liftraisethrust