a pebble or cobble that has been faceted, grooved, and polished by the erosive action of wind-driven sand.
- vent window,
- ventana cave,
- ventilation-perfusion scan,
Origin of ventifact
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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
A rock or pebble that has been shaped, polished, or faceted by wind-driven sand.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.