Torque

The tendency of a force to cause or change rotational motion of a body.

Aviation Maintenance Technician Handbook — General, p. G-10

Also defined in 3 more sources

A force that produces or tries to produce rotation.

Aviation Maintenance Technician Handbook — Airframe, p. G-36; Aviation Maintenance Technician Handbook — Powerplant, p. G-28

In helicopters with a single, main rotor system, the tendency of the helicopter to turn in the opposite direction of the main rotor rotation.

Helicopter Flying Handbook, p. G-5

(1) A resistance to turning or twisting. (2) Forces that produce a twisting or rotating motion. (3) In an airplane, the tendency of the aircraft to turn (roll) in the opposite direction of rotation of the engine and propeller. (4) In helicopters with a single, main rotor system, the tendency of the helicopter to turn in the opposite direction of the main rotor rotation.

Pilot's Handbook of Aeronautical Knowledge, p. G-30

Used throughout the curriculum.