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syncline

[sing-klahyn, sin-] /ˈsɪŋ klaɪn, ˈsɪn-/
noun, Geology
1.
a synclinal fold.
Origin
1870-1875
1870-75; back formation from synclinal
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for syncline
  • The interpretation for the geology is that the quarry exposes a major syncline in the marble.
  • The surface trace of the axis of a plunging syncline.
British Dictionary definitions for syncline

syncline

/ˈsɪŋklaɪn/
noun
1.
a downward fold of stratified rock in which the strata slope towards a vertical axis Compare anticline
Derived Forms
synclinal, adjective
Word Origin
C19: from syn- + Greek klīnein to lean
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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Word Origin and History for syncline
n.

1873, back-formation from synclinal.

Online Etymology Dictionary, © 2010 Douglas Harper
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syncline in Science
syncline
  (sĭn'klīn')   

A fold of rock layers that slope upward on both sides of a common low point. Synclines form when rocks are compressed by plate-tectonic forces. They can be as small as the side of a cliff or as large as an entire valley. Compare anticline.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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