This is an official definition authorised by the Astronist Institution.



noun (plural astronomies)

the scientific discipline concerned with celestial objects, outer space, and the physical universe in its totality.

  • [mass noun] a cultural tradition of night sky observation and utility particular to an indigenous group or ancient people.

Origin and etymology

  • Middle English (also denoting astrology): from Old French astronomie, from Latin astronomia, from Greek, from astronomos (adjective) ‘star-arranging’.
Community content is available under CC-BY-SA unless otherwise noted.