geosyncline Hear it!

geosyncline definition

geo·syn·cline (-sin′klīn′)

noun

a very large, troughlike depression in the earth's surface containing masses of sedimentary and volcanic rocks

Etymology: geo- + syncline

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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