Etymology
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planetary (adj.)

1590s, "of or pertaining to a planet;" see planet + -ary. Perhaps from or based on Late Latin planetarius "pertaining to a planet or planets," but according to OED this is attested only as a noun meaning "an astrologer." Planetary nebula, so called for its shape as seen through a telescope, attested from 1785.

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Definitions of planetary

planetary (adj.)
involving the entire earth; not limited or provincial in scope;
neither national nor continental but planetary
Synonyms: global / world / worldwide / world-wide
planetary (adj.)
of or relating to or resembling the physical or orbital characteristics of a planet or the planets;
planetary motion
planetary year
Synonyms: planetal
planetary (adj.)
of or relating to or characteristic of the planet Earth or its inhabitants; "planetary rumblings and eructations"- L.C.Eiseley;
the planetary tilt
Synonyms: terrestrial
planetary (adj.)
having no fixed course;
a planetary vagabond
Synonyms: erratic / wandering
From wordnet.princeton.edu