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exocrine gland
exocyclic
exocytosis
Exod.
exodontics
Exodus
exodus
exoenzyme
exoergic
exogamy
exogenous
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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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