lithosphere

Lithosphere is defined as the rock and crust surface that covers the Earth.

(noun)

An example of lithosphere is the Rocky Mountain range in western North America.

See lithosphere in Webster's New World College Dictionary

noun

the solid, rocky part of the earth; earth's crust

Origin: litho- + -sphere

See lithosphere in American Heritage Dictionary 4

noun

The outer part of the earth, consisting of the crust and upper mantle, approximately 100 km (62 mi.) thick.

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