Definition of stratospheric in US English:

stratospheric

adjective

  • 1Relating to the layer of the earth's atmosphere above the troposphere, extending to about 32 miles (50 km) above the earth's surface.

    ‘the stratospheric ozone layer’
    • ‘Post made several successful stratospheric flights in his plane, the Winnie Mae.’
    • ‘During the test flight, the company successfully tested digital high-definition television broadcasts from its stratospheric transmitter.’
    • ‘The differences in layout of the continents in the two hemispheres affects the dynamics of stratospheric circulation.’
    • ‘The stratospheric changes are most pronounced near the poles and between 20 and 40 degrees of latitude.’
    • ‘By trapping more heat near Earth's surface, these gases cause the stratosphere to become cooler and produce more stratospheric clouds.’
    1. 1.1informal Extremely high.
      ‘stratospheric salaries and bonuses’
      ‘stratospheric prices’
      • ‘On this album, there seems to be little sign of any stratospheric career change in sight.’
      • ‘He has been plagued by the stratospheric expectations that his own 2008 campaign created.’
      • ‘The valuations of virtually all tech companies in the 1990s rose to stratospheric heights, making dividends unnecessary.’
      • ‘Some of 2003's increased costs were stratospheric.’
      • ‘They're still showing growth characteristics with decent, if not stratospheric, forecasts for this year and next.’

Pronunciation