planet gear
noun Machinery.
any of the gears in an epicyclic train surrounding and engaging with the sun gear.
Also called
planet wheel.
Origin of planet gear
First recorded in 1915–20
Words nearby planet gear
planer,
planer saw,
planer tree,
planeside,
planet,
planet gear,
planet wheel,
planet x,
planet zog,
planet-struck,
planetarian
British Dictionary definitions for planet wheel
planet wheel
planet gear
noun
any one of the wheels of an epicyclic gear train that orbits the central axis of the train