EXAMPLES | WORD ORIGIN noun . Geology the crust and upper mantle of the earth.
ge·o·sphere [ jee- uh-sfeer] /ˈdʒi əˌsfɪər/
Related forms lith·o·spher·ic , [lith- uh- sfer-ik] /ˌlɪθ əˈsfɛr ɪk/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for lithosphere Historical Examples of lithosphere British Dictionary definitions for lithosphere noun the rigid outer layer of the earth, having an average thickness of about 75 km and comprising the earth's crust and the solid part of the mantle above the asthenosphere
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for lithosphere n.
"solid part of the earth's surface," 1881; see
litho- "stone" + sphere.
Online Etymology Dictionary, © 2010 Douglas Harper
The outer part of the Earth, consisting of the crust and upper mantle. It is about 55 km (34 mi) thick beneath the oceans and up to about 200 km (124 mi) thick beneath the continents. The high velocity with which seismic waves propagate through the lithosphere suggests that it is completely solid. Compare asthenosphere atmosphere hydrosphere.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
lithosphere [( lith-uh-sfeer)]
The outer layer of the
Earth, comprising the crust and the upper part of the mantle. The lithosphere is about sixty miles thick.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.