noun
: the advantage gained by the use of a mechanism in transmitting force ; specifically : the ratio of the force that performs the useful work of a machine (as a lever or a hydraulic press) to the force that is applied to the machine
noun
: the advantage gained by the use of a mechanism in transmitting force ; specifically : the ratio of the force that performs the useful work of a machine (as a lever or a hydraulic press) to the force that is applied to the machine
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012