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Noun: rotor  row-tu(r)
  1. The rotating armature of a motor or generator
    - rotor coil
  2. The revolving bar of a distributor
  3. Rotating mechanism consisting of an assembly of rotating airfoils
    "there are horizontal rotors on a helicopter or compressor rotors in a jet engine"

Derived forms: rotors

Type of: armature, bar, rotating mechanism

Antonym: stator

Part of: chopper, copter, distributer, distributor, eggbeater, electric motor, electrical distributor, generator, helicopter, jet engine, turbine, whirlybird [N. Amer]

Encyclopedia: Rotor