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astrocytoma
astrodome
astrodynamics
astrogeology
astrogeophysics
astrol.
astrolabe
astrology
astrometry
astron.
astronaut
astronautics
astronavigation
astronomical
astronomical clock
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astronomical twilight
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astrometry
as·trom·e·try [ ə strómmətree ]


noun 
Definition:
 
measurement of celestial motion and position: the measurement of the real and apparent motions and the positions of astronomical objects

as·tro·met·ri·cal [ àstrə méttrik'l ] adjective
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