Sta"tor (?), n. (Mach.)
A stationary part in or about which another part (the rotor) revolves, esp. when both are large; as,
(a) (Elec.)
The stationary member of an electrical machine, as of an induction motor.
(b) (Steam Turbine)
The case inclosing a turbine wheel; the body of stationary blades or nozzles.
© Webster 1913