Definition of Exosphere in English :
Define Exosphere in English
Exosphere meaning in English
Meaning of Exosphere in English
Pronunciation of Exosphere in English
Exosphere pronunciation in English
Pronounce Exosphere in English
Exosphere
see synonyms of exosphereNoun
1. exosphere
the outermost atmospheric layer
WordNet Lexical Database for English. Princeton University. 2010.
Exosphere
see synonyms of exospherenoun
the outermost layer of the earth's atmosphere. It extends from about 400 km above the earth's surface
Collins English Dictionary. Copyright © HarperCollins Publishers
Exosphere
see synonyms of exosphere noun
the outermost portion of a planet's, esp. the earth's, atmosphere, consisting of a hot layer of light atoms often moving at escape velocity
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Exosphere
see synonyms of exospheren.
1. The outermost region of a planet's atmosphere.
2. The outermost region of the earth's atmosphere, lying above the thermosphere and extending thousands of kilometers into space, from which molecules having sufficient velocity can escape the earth's gravitation.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.