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terrane

[tuh-reyn, ter-eyn]
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noun Geology.
  1. any rock formation or series of formations or the area in which a particular formation or group of rocks is predominant.
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Also terrain.

Origin of terrane

First recorded in 1815–25; spelling variant of terrain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for terrane

terrane

terrain

noun
  1. a series of rock formations, esp one having a prevalent type of rock
  2. an allochthonous, fault-bounded section of the earth's crust
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Word Origin

C19: see terrain
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