Moment

A force that causes or tries to cause an object to rotate. The value of a moment is the product of the weight of an object (or the force), multiplied by the distance between the center of gravity of the object (or the point of application of the force) and the fulcrum about which the object rotates.

Aviation Maintenance Technician Handbook — Airframe, p. G-23

A force that causes or tends to cause an object to rotate. It is indicated by the product of the weight of an item multiplied by its arm.

Aircraft Weight and Balance Handbook, p. G-4

(GAMA) The product of the weight of an item multiplied by its arm. (Moment divided by a constant is used to simplify balance calculations by reducing the number of digits; see reduction factor.)

Aircraft Weight and Balance Handbook, p. G-4

The product of the weight of an item multiplied by its arm. Moments are expressed in pound-inches (lb-in). Total moment is the weight of the airplane multiplied by the distance between the datum and the CG.

Pilot's Handbook of Aeronautical Knowledge, p. G-20