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upthrow

[noun uhp-throh; verb uhp-throh]
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noun
  1. an upheaval, as of the earth's surface.
  2. Geology. an upward displacement of rock on one side of a fault.
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verb (used with object), up·threw, up·thrown, up·throw·ing.
  1. to throw or cast up or upward.
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Origin of upthrow

First recorded in 1590–1600; up- + throw
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

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British Dictionary definitions for upthrow

upthrow

noun
  1. geology the upward movement of rocks on one side of a fault plane relative to rocks on the other side
  2. rare an upward thrust or throw; upheaval
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012