mesopause

mesopause

See also: mésopause

English

Etymology

Etymology tree
Proto-Indo-European *me
Proto-Indo-European *dʰeh₁-?
Proto-Indo-European *-dʰe
Proto-Indo-European *médʰi
Proto-Indo-European *-os
Proto-Indo-European *médʰyos
Proto-Hellenic *métsos
Ancient Greek μέσος (mésos)der.
English meso-
English -pause
English mesopause

    From meso- (“middle”) + -pause (“boundary”).

    Noun

    mesopause (plural mesopauses)

    1. (meteorology) In the atmosphere, the boundary between the mesosphere and the thermosphere or ionosphere. It is the atmospheric boundary where the temperature reaches its minimum value.

    Usage notes

    The mesopause commonly lies between 80 and 90 km (50-55 mi) above sea level (ASL)

    Coordinate terms

    Translations

    This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.