mesopause(redirected from mesopauses)
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Related to mesopauses: tropopause, thermosphere, ionosphere, menopause, mesosphere
a transition layer of the atmosphere (at an altitude of about 80 km) between the mesosphere, where the temperature decreases with altitude, and the thermosphere, where the temperature increases with altitude. The mesopause is thus a level of minimum temperature. Noctilucent clouds are observed at this altitude.