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substratosphere

[suhb-strat-uh-sfeer] /sʌbˈstræt əˌsfɪər/
noun, (not used technically)
1.
the upper troposphere.
Origin
1915-1920
1915-20; sub- + stratosphere
Related forms
substratospheric
[suhb-strat-uh-sfer-ik, -sfeer-] /ˌsʌb stræt əˈsfɛr ɪk, -ˈsfɪər-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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