antitorque rotor

[ an-tee-tawrk, an-tahy- ]
/ ˌæn tiˈtɔrk, ˌæn taɪ- /

noun Aeronautics.

(on certain helicopters) a small rotor on the tail, turning in the vertical plane and providing a thrust whose torque opposes and compensates for the torque of the main rotor.

Origin of antitorque rotor

anti- + torque

Words nearby antitorque rotor

antithermic, antithesis, antithetical, antithrombin, antithrombotic, antitorque rotor, antitoxic, antitoxin, antitoxin unit, antitrade, antitrades