Noun
English Wikipedia has an article on:synchronous motorWikipedia
synchronous motor (plural synchronous motors)
An electric motor whose rotation is synchronized with the frequency of the supplied current
The counting may be done electronically, usually in clocks with digital displays, or, in analog clocks, the AC may drive a synchronous motor which rotates an exact fraction of a revolution for every cycle of the line voltage, and drives the gear train. Source: Internet
Most linear motors in use are LIM (linear induction motor), or LSM (linear synchronous motor). Source: Internet
The low-acceleration, high speed and high power motors are usually of the linear synchronous motor (LSM) design, with an active winding on one side of the air-gap and an array of alternate-pole magnets on the other side. Source: Internet
The reactive power drawn by the synchronous motor is a function of its field excitation. Source: Internet