Definition of upthrust in English:

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Pronunciation: /ˈəpˌTHrəst/


1The 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.
1.2An upward thrust: the upthrust of Manhattan skyscrapers
More example sentences
  • Detailing this process in his book 'Wealth and Democracy', Kevin Phillips writes: ‘The upthrust of the largest fortunes principally reflected gargantuan increases in stock market valuations, especially technology holdings.’


[with object] (usually as adjective upthrust)
Thrust (something) upward: 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

Syllabification: up·thrust

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