ex·o·sphere

(ĕk′sō-sfîr′)

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.

ex′o·spher′ic (-sfîr′ĭk, -sfĕr′-) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

exospheric

(ˌɛksəʊˈsfɛrɪk) or

exospherical

adj

(Physical Geography) of or relating to the exosphere

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Translations

exosphérique

References in periodicals archive

Sadly, for someone who achieved so much, Schumacher's 2010-12 was lacklustre by his own exospheric standards.

The legend of Formula One

The Mars Orbiter has five scientific instruments - Lyman Alpha Photometer (LAP), Methane Sensor for Mars (MSM), Mars Exospheric Neutral Composition Analyser (MENCA), Mars Colour Camera (MCC) and Thermal Infrared Imaging Spectrometer (TIS).

India's Mars Orbiter Mission completes three years in orbit

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