Origin of diapir
1915–20; < French, said to be < Greek diapeírein to drive through, pierce; dia- dia- + peírein to pierce
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- geology an anticlinal fold in which the brittle overlying rock has been pierced by material, such as salt, from beneath
C20: from Greek diapeirainein to make holes through, pierce
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 fold or dome, such as an anticline, in which the upper strata of sediment or rock have been ruptured by the upward movement of more plastic rock, such as a body of salt, gypsum, or lava.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.