stratosphere
noun
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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
Charlotte Harpur, New York Times, 25 July 2025
But back in 1967, scientists lacked the long-term records necessary to test this prediction, particularly for the mid- to upper stratosphere, between approximately 25 and 50 km above Earth’s surface.
—Ben Santer, Scientific American, 4 July 2025
The post-pandemic influx of celebrities and royals, as well as local restaurant openings that look more like red carpet events, have catapulted the small, unincorporated town of fewer than 10,000 people into the real estate stratosphere, while much of Southern California stagnates.
—Alexandria Abramian, HollywoodReporter, 21 June 2025
With another big season, Tom will likely enter that stratosphere — whether that’s in Green Bay or somewhere else.
—Rob Reischel, Forbes.com, 4 June 2025
See All Example Sentences for stratosphere
Cite this Entry
“Stratosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stratosphere. Accessed 29 Jul. 2025.
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stratosphere
noun
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