"KIDS HOME STUDY REFERENCE DICTIONARY HOME WORD: mesosphere

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mes·o·sphere  audio 
(mz-sfîr, ms-)  See the pronunciation key 

NOUN:
The portion of the atmosphere from about 30 to 80 kilometers (20 to 50 miles) above the earth's surface, characterized by temperatures that decrease from 10°C to -90°C (50°F to -130°F) with increasing altitude.


OTHER FORMS:
meso·spheric(Adjective)
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