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A variety of albite occurring as elongated white crystals.

[From Greek periklinēs, sloping on all sides : peri-, peri- + klīnein, to slope; see klei- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Minerals) a white translucent variety of albite in the form of elongated crystals
2. (Geological Science) Also called: dome a dome-shaped formation of stratified rock with its slopes following the direction of folding
[C19: from Greek periklinēs sloping on all sides, from peri- + klinein to lean]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014