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astrodynamics
astrogeology
astrogeophysics
astrol.
astrolabe
astrology
astrometry
astron.
astronaut
astronautics
astronavigation
astronomical
astronomical clock
astronomical telescope
astronomical twilight
astronomical unit
astronomical year
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astro-
astro-


prefix 
Definition:
 
1. star, the stars, outer space
astrobiology
2. aster of a cell
astrocyte
[< Greek< astron "star" < astēr (see aster)]
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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