anti-torque rotor

/tɔrk ˌroʊdər/
IPA guide

Definitions of anti-torque rotor
  1. noun
    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
    synonyms: tail rotor
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    type of:
    rotor
    rotating mechanism consisting of an assembly of rotating airfoils
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