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Definition of "stratosphere" [stratosphere]

  • The region of the atmosphere above the troposphere and below the mesosphere. (noun)
  • An extremely high or the highest point or degree on a ranked scale: business expenses in the stratosphere. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "stratosphere" in a sentence
  • "This year, the temperature in the stratosphere is a little less cold than in 2006."
  • "These nitrogen oxides are formed in the stratosphere from the decomposition of nitrous oxide"
  • "The purpose in flying in the stratosphere is not primarily to get as far away from the earth as one can."