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astrobiology
astrobleme
astrochemistry
astrocompass
astrocyte
astrocytoma
astrodome
astrodynamics
astrogeology
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astrogeology
as·tro·ge·ol·o·gy [ àstrō jee ólləjee ]


noun 
Definition:
 
extraterrestrial geology: the study of the origin, history, and structure of cosmic bodies other than Earth

as·tro·ge·ol·o·gist noun
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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