Tropopause
noun, Meteorology.
1.
the boundary, or transitional layer, between the troposphere and the stratosphere.
noun
1.
(meteorol) the plane of discontinuity between the troposphere and the stratosphere, characterized by a sharp change in the lapse rate and varying in altitude from about 18 km (11 miles) above the equator to 6 km (4 miles) at the Poles
tropopause
(trō’pə-pôz’, trŏp’ə-)
The boundary between the upper troposphere and the lower stratosphere, varying in altitude from about 8 km (5 mi) at the poles to 18 km (11 mi) at the equator.
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