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earth pillar

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noun Geology.
  1. a pillar of earthy matter left by erosion of the surrounding ground.
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Origin of earth pillar

First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for earth pillar

earth pillar

noun
  1. a landform consisting of a column of clay or earth capped and protected from erosion by a boulder
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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