Webster's Revised Unabridged Dictionary · 1913

Planetary

Planetary , adjective

[Compare Latin planetarius an astrologer, French planétaire planetary. See Planet.]

1.
Of or pertaining to the planets; as, planetary inhabitants; planetary motions; planetary year.
2.
Consisting of planets; as, a planetary system.
3.
(Astrology) Under the dominion or influence of a planet.
Skilled in the planetary hours. — Drayton
4.
Caused by planets.
A planetary plague. — Shakespeare
5.
Having the nature of a planet; erratic; revolving; wandering.
Erratical and planetary life. — Fuller
Collocations (2)
Planetary days , the days of the week as shared among the planets known to the ancients, each having its day. — Hutton
Planetary nebula , a nebula exhibiting a uniform disk, like that of a planet.