Definition of upthrust in English:



  • 1The upward force that a liquid or gas exerts on a body floating in it.

    • ‘The fish in the bucket is upthrusted by the water.’
    1. 1.1Geology
      another term for uplift
      • ‘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’
    • ‘Another theory takes a geological approach and points out that these peaks are made of younger, upthrusted lava, and thus look different and ‘crazy’ compared to the surrounding rock.’
    • ‘Over several million years these large blocks of land were upthrusted, dissected by erosion, and then inundated by the sea; during this period, sedimentary layers formed of varying thicknesses.’
    • ‘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.’
    • ‘The Grenadiers consist of upthrusted blocks of Precambrian Quartzite and slate.’
    • ‘She is broken into four separate images, each of which shows a portion of her body - first her head reclining on upthrust arms, then her torso, thighs and feet.’
    • ‘But since then, the violent upthrusting of the Andean chain has carried the sediments to the tops of mountains.’
    • ‘Much of the island is an ancient limestone seabed that has been upthrusted by tectonic forces.’
    • ‘The tented arch pattern consists of at least one upthrusting ridge, which tends to bisect superior ridges at right angles, more or less.’
    • ‘It wound around hillocks and between upthrust boulders, even the trees they passed were mightier of girth.’
    • ‘He swore and kicked at the trunk as it caught on an upthrust root, then swore again as it jerked free and slammed into his shin.’
    • ‘The constant eruptions of Io's many volcanoes should prevent the formation of mountains formed by upthrusting rock, yet here it stands.’
    • ‘The most common type of reef historically, found in the Chesapeake is a upthrusting reef, which protrudes upward from the bottom.’
    • ‘The image is freshened by a sky blue ground framing the darker silhouette and accenting the yellow-gold braid of the uniform and Roulin's upthrust bearded face.’
    • ‘An upthrusted rock is carved as an altar.’
    • ‘The area of interest is located on an upthrusted block.’
    raise, hoist, lift, lift up, raise aloft, haul up, winch up, lever up, heave up, hike up, hitch up, pull up, take up, upraise, uplift, elevate
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