Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A member of the professional staff of a planetarium.
  • noun An inhabitant of a planet.

from The Century Dictionary.

  • Of or pertaining to a planet or the planets; planetary.
  • noun An inhabitant of a planet.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun obsolete astrologer
  • noun An inhabitant of a planet
  • noun An operator of a planetarium

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

planetary +‎ -an

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