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frost heave

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noun Geology.
  1. an uplift in soil caused by the freezing of internal moisture.

Origin of frost heave

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for frost heave

frost heave

noun
  1. the upthrust and cracking of a ground surface through the freezing and expansion of water underneathAlso called: frost heaving
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