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1. a facial outline or feature
2. Geology any long natural feature on the surface of the earth, such as a fault, esp as revealed by aerial photography
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(1) Extended rectilinear elements of the relief and landscape usually associated with fissures and faults in the earth’s crust.
(2) Very large zones of fracture that are of global significance, or megalineaments (according to E. Hills, 1967).
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
A prominent linear feature on the lunar surface.
A straight or gently curved, lengthy topographic feature expressed as depressions or lines of depressions. Also known as linear.
A structurally controlled line on an aerial photograph; applied to lines representing beds, veins, faults, rock boundaries, and such.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.