commutator

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English[edit]

Noun[edit]

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commutator (plural commutators)

  1. an electrical switch, in a generator or motor, that periodically reverses the direction of an electric current
  2. (mathematics) (of a group) an element of the form ghg−1h−1 where g and h are elements of the group; it is equal to the group's identity if and only if g and h commute
  3. (mathematics) (of a ring) an element of the form ab-ba, where a and b are elements of the ring, it is identical to the ring's zero element if and only if a and b commute
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Translations[edit]

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Latin[edit]

Verb[edit]

commūtātor

  1. second-person singular future passive imperative of commūtō
  2. third-person singular future passive imperative of commūtō