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[slik-uh n-sahyd] /ˈslɪk ənˌsaɪd/
noun, Geology
a rock surface that has become more or less polished and striated by slippage along a fault plane.
Origin of slickenside
1760-70; slick2 + -en3 + side1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for slickenside
  • Display slickenside lineations on low-angle normal dip-slip faults.
  • Intervals reveal slickenside features, many of which are mineral filled.
  • Throughout the entry, shale had commonly fallen out to bedding-parallel polished slickenside surfaces.
British Dictionary definitions for slickenside


a rock surface with a polished appearance and fine parallel scratches caused by abrasion during fault displacement
Word Origin
C18: from dialect slicken, variant of slick + side
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
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slickenside in Science
A polished, striated rock surface formed by one rock mass sliding over another in a fault plane.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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