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noun Meteorology.
the lowest layer of the atmosphere, 6 miles (10 km) high in some areas and as much as 12 miles (20 km) high in others, within which there is a steady drop in temperature with increasing altitude and within which nearly all cloud formations occur and weather conditions manifest themselves.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To troposphere
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Troposphere
is always a great word to know.
So is zero-zero. Does it mean:
| the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed |
| atmospheric conditions having or characterized by zero visibility in both horizontal and vertical directions |
Example Sentences
- The stratosphere cooling while the troposphere warms.
- If he does become a star, he may finally be able to get the backing to blast into the troposphere.
- The troposphere is warming while the stratosphere is cooling.
Collins
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
troposphere
1914, from Fr. troposphère, lit. "sphere of change," coined by Fr. meteorologist Philippe Teisserenc de Bort (1855-1913) from Gk. tropos "a turn, change" (see trope) + sphaira "sphere."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
troposphere  (trō'pə-sfîr', trŏp'ə-) Pronunciation Key
The lowest and densest region of the Earth's atmosphere, extending from the Earth's surface to the tropopause. The troposphere is characterized by temperatures that decrease with increasing altitude. At the top of this region, temperatures are close to -55°C (-67°F). The weather, major wind systems, and cloud formations occur mostly in the troposphere. See also exosphere, mesosphere, stratosphere, thermosphere., See illustration at atmosphere. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
troposphere [(troh-puh-sfeer, trop-uh-sfeer)]The lowest layer of the atmosphere of the Earth, extending from ground level to an altitude of seven to ten miles.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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