Planet /(?)/

Plan·et

Planet

n.
  1. A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system. (Astron.)
  2. A star, as influencing the fate of a men.
    There's some ill planet reigns.

Phrases & Compounds
Planet gear
See Epicyclic train, under Epicyclic.
Planet wheel
a gear wheel which revolves around the wheel with which it meshes, in an epicyclic train.