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ventifact

American  
[ven-tuh-fakt] / ˈvɛn təˌfækt /

noun

Geology.
  1. a pebble or cobble that has been faceted, grooved, and polished by the erosive action of wind-driven sand.


ventifact British  
/ ˈvɛntɪˌfækt /

noun

  1. geology a pebble that has been shaped by wind-blown sand

"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 Scientific  
/ vĕntə-făkt′ /
  1. A rock or pebble that has been shaped, polished, or faceted by wind-driven sand.


Etymology

Origin of ventifact

First recorded in 1910–15; from Latin venti-, combining form of ventus “wind” ( wind 1 ) + factum “something made, deed” ( fact ); perhaps modeled on artifact