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
Recent Examples of troposphere from the Web
Correcting these inputs has been shown to improve the match with surface temperatures, and the same would be true for the upper troposphere tracked by the satellite measurements.
Once formed, a tropical cyclone is maintained by the extraction of heat energy from the ocean at high temperature and heat export at the low temperatures of the upper troposphere.
These wispy clouds are made up of ice crystals that form in the upper troposphere.
The layer closest to Earth, the troposphere, is where weather occurs.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'troposphere.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of troposphere
International Scientific Vocabulary
First Known Use: 1908See Words from the same year
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