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fault line

noun, Geology
1.
the intersection of a fault with the surface of the earth or other plane of reference.
Origin
1865-1870
1865-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for fault-line

fault line

noun
1.
(geology) Also called fault plane. the surface of a fault fracture along which the rocks have been displaced
2.
a potentially disruptive division or area of contention: Europe remains the main fault line in the Tory Party
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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