Definition of troposphere
: the lowest densest part of the earth's atmosphere in which most weather changes occur and temperature generally decreases rapidly with altitude and which extends from the earth's surface to the bottom of the stratosphere at about 7 miles (11 kilometers) high
troposphericplay \ˌtrō-pə-ˈsfir-ik, ˌträ-, -ˈsfer-\ adjective
Origin and Etymology of troposphere
International Scientific Vocabulary
First Known Use: 1908
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