induction motor

noun
a type of electric motor in which alternating current from a power source is fed through a primary winding and induces a current in a secondary winding, with the parts arranged so that the resulting magnetic field causes a movable rotor to rotate with respect to a fixed stator.
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World English Dictionary
induction motor
 
—n
a type of brushless electric motor in which an alternating supply fed to the windings of the stator creates a magnetic field that induces a current in the windings of the rotor. Rotation of the rotor results from the interaction of the magnetic field created by the rotor current with the field of the stator

Collins English Dictionary - Complete & Unabridged 10th Edition
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Induction motor is always a great word to know.
So is quincunx. Does it mean:
a gadget; dingus; thingumbob.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
Example sentences
The difference between theoretical, or synchronous, speed and actual speed in
  an induction motor.
The magnetic field of the rotor in an induction motor is generated by an
  electric current flowing through its copper windings.
The actual operating speed of an induction motor is somewhat less than its
  synchronous speed.
The pump impeller attaches to the rotor shaft of the driving motor, which is an
  electric induction motor.
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