geosyncline

[ jee-oh-sin-klahyn ]
/ ˌdʒi oʊˈsɪn klaɪn /

noun Geology.

a portion of the earth's crust subjected to downward warping during a large span of geologic time; a geosynclinal fold.

QUIZZES

BEAT THE DOLDRUMS WITH THIS WORD OF THE DAY QUIZ!

We know you’ll tackle this quiz totis viribus! See how many words from the week of Oct 12–18, 2020 you get right!
Question 1 of 7
What does “Indigenous” mean?

Origin of geosyncline

First recorded in 1890–95; geo- + syncline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for geosyncline

British Dictionary definitions for geosyncline

geosyncline
/ (ˌdʒiːəʊˈsɪŋklaɪn) /

noun

a broad elongated depression in the earth's crust containing great thicknesses of sediment

Derived forms of geosyncline

geosynclinal, adjective
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

Scientific definitions for geosyncline

geosyncline
[ jē′ō-sĭnklīn′ ]

A usually elongate, basinlike depression along the edge of a continent, in which a thick sequence of sediments and volcanic deposits has accumulated.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.