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astrogeology
astrogeophysics
astrol.
astrolabe
astrology
astrometry
astron.
astronaut
astronautics
astronavigation
astronomical
astronomical clock
astronomical telescope
astronomical twilight
astronomical unit
astronomical year
astronomy
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astronautics
as·tro·nau·tics [ àstrə náwtiks ]


noun 
Definition:
 
1. science of spacecraft design: the science and technology of designing and building spacecraft ( takes a singular verb )

2. spacecraft operation: the skills and activities associated with the operation of a spacecraft ( takes a plural verb )

[Early 20th century. <astro-, after aeronautics]

as·tro·nau·tic adjective
as·tro·nau·ti·cal·ly adverb
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