Definition of upthrust in English:

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Pronunciation: /ˈʌpθrʌst/


1 Physics The upward force that a liquid or gas exerts on a body floating in it.
Example sentences
  • The fish in the bucket is upthrusted by the water.
1.1 Geology another term for uplift.
Example sentences
  • In addition, the rocks here are a mix of volcanic upthrusts and soft red sandstone.
  • This feature was once described as ‘the finest ‘small’ mountain feature in the British Isles ’, and is in reality an east-west ridge of volcanic rock which appears as a narrow upthrust of columnar pitchstone when seen from the south or east.
  • Many boats from San Carlos make a beeline to the rugged upthrust of San Pedro Nolasco Island, where the phenomenon brings sierra, dorado, and snapper to the surface.


[with object] (usually as adjective upthrust)
Thrust (something) upwards: Turco’s upthrust beard
More example sentences
  • Much of the island is an ancient limestone seabed that has been upthrusted by tectonic forces.
  • But since then, the violent upthrusting of the Andean chain has carried the sediments to the tops of mountains.
  • The hills were formed by some upthrusting of the earth's crust which changed the landscape dramatically after the weight of the ice was melted away.

For editors and proofreaders

Line breaks: up|thrust

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