from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The phenomenon whereby the earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface.
- n. A similar retention of solar radiation, as by another planet or in a solar panel.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. (with the) The process by which a planet is warmed by its atmosphere.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. warming that results when solar radiation is trapped by the atmosphere; caused by atmospheric gases that allow sunshine to pass through but absorb heat that is radiated back from the warmed surface of the earth
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