lithosphere

noun

lith·​o·​sphere ˈli-thə-ˌsfir How to pronounce lithosphere (audio)
: the solid part of a celestial body (such as the earth)
specifically : the outer part of the solid earth composed of rock essentially like that exposed at the surface, consisting of the crust and outermost layer of the mantle, and usually considered to be about 60 miles (100 kilometers) in thickness
lithospheric adjective

Examples of lithosphere in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The processes led to the lithosphere, which consists of the Earth's crust and upper mantle, thinning and extending seaward. Devika Rao, theweek, 30 Oct. 2024 The issue is that even if a plate is dense enough to sink into the mantle, the lithosphere—the strong and rigid outer shell of the planet—has to crack first. Shannon Hall, Scientific American, 20 July 2017 But what causes the lithosphere to crack is hotly debated in the field. Shannon Hall, Scientific American, 20 July 2017 Earth's upper mantle is separated into two layers, the lithosphere and the asthenosphere, though the lithosphere also contains Earth's crust. Matt Benoit, Discover Magazine, 19 Dec. 2023 See all Example Sentences for lithosphere 

Word History

Etymology

borrowed from German Lithosphäre, from litho- litho- + -sphäre -sphere

Note: Lithosphäre was introduced by the Austrian geologist Eduard Suess (1831-1914) in Die Entstehung der Alpen (Vienna, 1875), p. 158.

First Known Use

1887, in the meaning defined above

Time Traveler
The first known use of lithosphere was in 1887

Dictionary Entries Near lithosphere

Cite this Entry

“Lithosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lithosphere. Accessed 21 Nov. 2024.

Kids Definition

lithosphere

noun
litho·​sphere
ˈlith-ə-ˌsfi(ə)r
: the outer part of the solid earth consisting of the crust and part of the mantle

More from Merriam-Webster on lithosphere

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