[ jee-oh-sin-klahyn ]
/ ˌdʒi oʊˈsɪn klaɪn /
a portion of the earth's crust subjected to downward warping during a large span of geologic time; a geosynclinal fold.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for geosyncline
The mountain range can only arise where the geosyncline is deeply filled by long ages of sedimentation.The Birth-Time of the World and Other Scientific Essays|J. (John) Joly
British Dictionary definitions for geosyncline
/ (ˌdʒiːəʊˈsɪŋklaɪn) /
a broad elongated depression in the earth's crust containing great thicknesses of sediment
Derived forms of geosynclinegeosynclinal, adjective
Scientific definitions for geosyncline
[ jē′ō-sĭn′klīn′ ]
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.