anti-torque rotor


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Noun1.anti-torque rotor - rotor consisting of a rotating airfoil on the tail of a single-rotor helicopteranti-torque 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
rotor - rotating mechanism consisting of an assembly of rotating airfoils; "there are horizontal rotors on a helicopter or compressor rotors in a jet engine"
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