stratosphere

noun

strato·​sphere ˈstra-tə-ˌsfir How to pronounce stratosphere (audio)
1
: the part of the earth's atmosphere which extends from the top of the troposphere to about 30 miles (50 kilometers) above the surface and in which temperature increases gradually to about 32°F (0°C) and clouds rarely form
2
: a very high or the highest region on or as if on a graded scale
construction costs in the stratosphere
the celebrity stratosphere
stratospheric adjective
stratospherically adverb

Did you know?

The stratosphere (strato- simply means "layer" or "level") lies above the earth's weather and mostly changes very little. It contains the ozone layer, which shields us from the sun's ultraviolet radiation except where it's been harmed by manmade chemicals. The levels of the atmosphere are marked particularly by their temperatures; stratospheric temperatures rise only to around 32°—very moderate considering that temperatures in the troposphere below may descend to about -70° and those in the ionosphere above may rise to 1000°.

Examples of stratosphere 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 problem is that Tavares isn’t in the same stratosphere as any other players making that kind of money. Eric Duhatschek, The Athletic, 5 Apr. 2024 Shakespeare’s Romeo and Juliet vaults into the emotional stratosphere in Act Three and stays there till its finish. Sara Holdren, Vulture, 24 Oct. 2024 Joel Embiid, the Denver Nuggets’ Nikola Jokic and the Phoenix Suns’ Bradley Beal now join him in that stratosphere. Brett Knight, Forbes, 21 Oct. 2024 The best of Wesselmann, the show seems to imply, ought to be up in that stratosphere, too—or at least closer to it than the current auction record of $10.7 million, set at Sotheby’s New York in 2008. Sarah Douglas, ARTnews.com, 16 Oct. 2024 See all Example Sentences for stratosphere 

Word History

Etymology

borrowed from French stratosphère, probably from stratus stratus (from the zone's layer-like character, compared to stratus clouds) + -o- -o- + -sphère -sphere

Note: The term was introduced, along with troposphère, by the French meteorologist Léon Tesserenc de Bort (1855-1913). See note at troposphere.

First Known Use

1908, in the meaning defined at sense 1

Time Traveler
The first known use of stratosphere was in 1908

Dictionary Entries Near stratosphere

Cite this Entry

“Stratosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stratosphere. Accessed 26 Nov. 2024.

Kids Definition

stratosphere

noun
strato·​sphere ˈstrat-ə-ˌsfi(ə)r How to pronounce stratosphere (audio)
: an upper portion of the atmosphere above the troposphere where temperature changes little and clouds rarely form

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