Commutator Definition

kŏmyə-tātər
noun
A device that commutates an electric current, esp. a split-ring metallic conductor that spins rapidly with the armature of a DC motor or generator while in contact with the fixed brushes.
Webster's New World
In a commutative or noncommutative group, an element of the form ghg−1 h−1 where g and h are elements of the group. If g and h commute, the commutator is the identity element.
American Heritage

Other Word Forms of Commutator

Noun

Singular:
commutator
Plural:
commutators

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