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ventifact

[ven-tuh-fakt]
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noun Geology.
  1. a pebble or cobble that has been faceted, grooved, and polished by the erosive action of wind-driven sand.
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Origin of ventifact

1910–15; < Latin venti- (combining form of ventus wind1) + factum something made (see fact); perhaps modeled on artifact
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ventifact

ventifact

noun
  1. geology a pebble that has been shaped by wind-blown sand
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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
ventifact in Science

ventifact

[vĕn′tə-făkt′]
  1. A rock or pebble that has been shaped, polished, or faceted by wind-driven sand.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.