rotor

/ˈroʊdər/

/ˈrʌʊtə/

Other forms: rotors

Definitions of rotor

1. noun

   rotating mechanism consisting of an assembly of rotating airfoils
   “there are horizontal rotors on a helicopter or compressor rotors in a jet engine”

   types:

   main rotor

   rotor consisting of large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the air

   anti-torque rotor, tail rotor

   rotor consisting of a rotating airfoil on the tail of a single-rotor helicopter; keeps the helicopter from spinning in the direction opposite to the rotation of the main rotor

   type of:

   rotating mechanism

   a mechanism that rotates
2. noun

   the rotating armature of a motor or generator
   synonyms: rotor coil

   antonyms:

   stator

   mechanical device consisting of the stationary part of a motor or generator in or around which the rotor revolves

   type of:

   armature

   coil in which voltage is induced by motion through a magnetic field
3. noun

   the revolving bar of a distributor
   type of:

   bar

   a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon