astro-, astra-, astr- (Greek: star, star shaped; also pertaining to outer space).archaeoastronomer: 
archaeoastronomy: 
astrobiology: 
astroblast: 
astrobolism: 
astrobotanist: 
astrobotany: 
astrochemistry: 
astrocompass: 
astrocyte: 
astrocytic: 
astrocytoma: 
astrodome: 
astrodynamics: 
astrogation: 
astrogator: 
astrogeny: 
astrogeology: 
astroglia: 
astrognosy: 
astrogonic: 
astrogony: 
astrogram: 
astrographic: 
astrography: 
astrohatch: 
astroid: 
astroite: 
astrokinetic: 
astrolabe: 
astrolabical: 
astrolater: 
astrolatry: 
astrolithology: 
astrolog: 
astrologaster: 
astrologer: 
astrologian: 
astrologic: 
astrological: 
astrologically: 
astrologize: 
astrologomage: 
astrologous: 
astrologue: 
astrology: 
astromagical: 
astromancer: 
astromancy: 
astromantic: 
astrometeorological: 
astrometeorologist: 
astrometeorology: 
astrometer: 
astrometry: 
astromyen: 
astronaut: 
astronautical: 
astronautics: 
astronavigation: 
astronavigator: 
astronomer: 
astronomian: 
astronomic: 
astronomical: 
astronomically: 
astronomien: 
astronomize: 
astronomy: 
astrophanometer: 
astrophanophile: 
astrophel: 
astrophile: 
astrophilic: 
astrophobia: 
astrophobic: 
astrophotograph: 
astrophotography: 
astrophotometer: 
astrophotometrical: 
astrophyllite: 
astrophysical: 
astrophysicist: 
astrophysics: 
astroplankton: 
astropodia: 
astropyle: 
astrosclereid: 
astroscope: 
astroscopy: 
astrose: 
astrosphere: 
astrospheric: 
astrotheology: 
bioastronautic: 
bioastronautics: 
disastrophism: 
disastrosly: 
disastrous: 
magastromancer: 
magastromancy: 
magastromantic: 
parastron: 
periastron: 
radioastronomy: 
theoastrological: 
theoastrology: 
unastronomical: 
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