torque : Idioms & Phrases
anti-torque rotor
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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
tail rotor.
WordNet
torque converter
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noun converter for transmitting and amplifying torque (especially by hydraulic means)
WordNet
torque wrench
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noun a wrench that has a gauge that indicates the amount of torque being applied