From Longman Dictionary of Contemporary Englishstratosphericstrat·o·spher·ic /ˌstrætəˈsferɪk◂ $ -ˈsfɪr-, -ˈsfer-/ adjective 1 [only before noun] relating to the outer part of the air surrounding the Earth2 informal a stratospheric price, amount, level etc is extremely high or great stratospheric house prices
