substratosphere

US:USA pronunciation: respellingUSA pronunciation: respelling(sub strat′ə sfēr′)


WordReference Random House Unabridged Dictionary of American English © 2026
sub•strat•o•sphere  (sub strat′ə sfēr′),USA pronunciation n. (not used technically)
  1. the upper troposphere.
  • 1915–20; sub- + stratosphere
sub•strat•o•spher•ic  (sub′strat ə sfer′ik, -sfēr′-),USA pronunciation adj. 

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