The lower part of the atmosphere extending from the surface up to a height varying from about 9 km at the poles to 17 km at the equator, in which the temperature decreases fairly regularly with height. See panel on Troposphere,
What is TROPOSPHERE?
Edited and fact checked by Pam: Google +
The Science Dictionary is the most comprehensive source of science definitions online with over 38K science terms written and created by our global team of scientists and academic professionals. ...more