commutator: Meaning and Definition of
Pronunciation: (kom'yu-tā"tur), [key]
- a device for reversing the direction of a current.
- (in a DC motor or generator) a cylindrical ring or disk assembly of conducting members, individually insulated in a supporting structure with an exposed surface for contact with current-collecting brushes and mounted on the armature shaft, for changing the frequency or direction of the current in the armature windings.
- the element equal to the product of two given elements in a group multiplied on the right by the product of the inverses of the elements.
- commutator (Thesaurus)