Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

stratosphere

play
noun strato·sphere \ˈstra-tə-ˌsfir\

Definition of stratosphere

  1. 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. 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 play \ˌstra-tə-ˈsfir-ik, -ˈsfer-\ adjective
stratospherically \-i-k(ə-)lē\ adverb


Origin of stratosphere

French stratosphère, from New Latin stratum + -o- + French sphère sphere, from Latin sphaera


First Known Use: 1909



STRATOSPHERE Defined for Kids

stratosphere

play
noun strato·sphere \ˈstra-tə-ˌsfir\

Definition of stratosphere for Students

  1. :  an upper portion of the atmosphere extending from about 6 miles (10 kilometers) to 30 miles (50 kilometers) upward where temperature changes little and clouds rarely form





Seen and Heard

What made you want to look up stratosphere? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to manage or play awkwardly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

reduce soothe perplex disapprove
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ