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Noun: planet wheel
  1. An outer gear that revolves about a central sun gear of an epicyclic train
    - planetary gear, epicyclic gear, planet gear

Derived forms: planet wheels

Type of: cogwheel, gear, gear wheel, geared wheel

Part of: epicyclic gear train, epicyclic train

Nearest

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planeful
planeload
planeness
plane-polarised
plane-polarized
planer
Planera
planet
planet gear
planet wheel
planetal
planetarium
planetary
planetary gear
planetary house
planetary mixer
planetary nebula
planetary science
planetesimal
planetesimal hypothesis