[1] : WordNet (r) 2.0

planetary gear
     n : an outer gear that revolves about a central sun gear of an
         epicyclic train syn: epicyclic gear, planet wheel, planet
         gear
see also:
epicyclic gear planet wheel planet gear 

Planetary Gear >> P Words
Planetary Gear, definition of term: Planetary Gear
planetary+gear_pag1.html

Planetary >> P Words
Planetary, definition of term: Planetary
planetary_pag1.html

Gear >> G Words
Gear, definition of term: Gear
gear_pag1.html

Gear Wheel >> G Words
Gear Wheel, definition of term: Gear Wheel
gear+wheel_pag1.html

Gear Up >> G Words
Gear Up, definition of term: Gear Up
gear+up_pag1.html

Gear Mechanism >> G Words
Gear Mechanism, definition of term: Gear Mechanism
gear+mechanism_pag1.html

Epicyclic Gear >> E Words
Epicyclic Gear, definition of term: Epicyclic Gear
epicyclic+gear_pag1.html