astro-
Prefix meaning star
Astro- is a prefix meaning star or outer space, from the Greek word for star.
It appears in words relating to celestial bodies and space exploration: astronomy, astronaut, astrophysics, astrology.
The prefix sometimes extends to anything cosmic or vast in scale.
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- stargazingObserving celestial bodies
- celestialOf the sky above
- cosmosOrderly totality of existence
planetary · stellar · galactic · nebula · comet · meteor · constellation · eclipse
Vehicle for outer space
- rocketPropulsion-driven spacecraft
- NASAFederal space exploration bureau
- missionPurpose-driven task
- launchSet into motion
spacewalk · capsule · module · cosmonaut · shuttle · orbital · docking · reentry
Study of universal structure
- quantumSmallest discrete unit
- relativityHow observers differ
- dark matterLightless cosmic mass
- dark energyForce accelerating universal expansion
particle · theoretical · singularity · entropy · antimatter · gravitational · wavelength · spectroscopy
Zodiac-based fortune telling
- zodiacCelestial belt of signs
- birth chartZodiac map at delivery
- natalRelating to delivery
- rising signZodiac sign ascending at birth
Mercury retrograde · houses · transit · conjunction · Scorpio · Aquarius · Leo · compatibility
Robotic boy protagonist, vintage anime
- sci-fiFuturistic fiction, abbreviated
- futuristicSuggestive of times ahead
- space ageSleekly modern, satellite-era
- retroEvoking recent past
Jetsons · cosmic · Star Trek · astroturf · space opera · alien · extraterrestrial · UFO
telescope
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- stargazingObserving celestial bodies
- celestialOf the sky above
cosmos · planetary · stellar · galactic · nebula · comet · meteor · constellation · eclipse · orbit
spacecraft
Vehicle for outer space
launch · spacewalk · capsule · module · cosmonaut · shuttle · orbital · docking · reentry · spacesuit
cosmology
Study of universal structure
- quantumSmallest discrete unit
- relativityHow observers differ
- dark matterLightless cosmic mass
dark energy · particle · theoretical · singularity · entropy · antimatter · gravitational · wavelength · spectroscopy · radiation
horoscope
Zodiac-based fortune telling
- zodiacCelestial belt of signs
- birth chartZodiac map at delivery
- natalRelating to delivery
rising sign · Mercury retrograde · houses · transit · conjunction · Scorpio · Aquarius · Leo · compatibility · reading
Astro Boy
Robotic boy protagonist, vintage anime
- sci-fiFuturistic fiction, abbreviated
- futuristicSuggestive of times ahead
- space ageSleekly modern, satellite-era
Jetsons · retro · cosmic · Star Trek · astroturf · space opera · alien · extraterrestrial · UFO · ray gun
astro-geo-
Earth combining form
terrestrial · earthbound · subterranean · chthonic · earthly
- astrological signZodiac position by birthdate
- Chinese astrologyAnimal-based birth year system
- astronaut trainingEducation for orbital travel
- astrological chartCelestial snapshot at birth
- astronaut helmetSealed headpiece for orbit
- ancient astronautsPrehistoric alien intervention theory
astronaut, astronomy, astrology, astronomical, astronauts, astrophysics, astrological, astrophysicist, astrolabe