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exotoxin
exotropia
exp.
expand
expanded
expanded metal
expanding flake
expanse
expansile
expansion
expansion board
expansion bolt
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expansion draft
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expansionary
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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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