commutator

English

Noun

Wikipedia 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

Wikipedia

Translations

electrical switch

Finnish: kommutaattori (fi) Romanian: colector de comutație (ro) n., colector (ro) n. (electric)

Swedish: kommutator (sv) c.

mathematical element, in a group

Hungarian: kommutátor

Portuguese: comutador (pt) m.

mathematical element, in a ring

Swedish: kommutator (sv) c.

See also

• anticommutator

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Latin

Verb

commūtātor

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