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exor.
exorbitant
exorcise
exorcism
exorcize
exordium
exoskeleton
exosmosis
exosphere
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exosphere
ex·o·sphere [ éksō sfr ]


noun 
Definition:
 
outermost region of the atmosphere: the outermost region of the atmosphere of Earth or another planet

ex·o·spher·ic [ èksō sfrik, èksō sférrik ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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