noun Date: 1880 1. a series of bars or segments so connected to armature coils of a generator or motor that rotation of the armature will in conjunction with fixed brushes result in unidirectional current output in the case of a generator and in the reversal of the current into the coils in the case of a motor 2. an element of a mathematical group that when used to multiply the product of two given elements either on the right side or on the left side but not necessarily on both sides yields the product of the two given elements in reverse order

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Commutator — Com mu*ta tor, n. (Elec.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction …   The Collaborative International Dictionary of English

  • Commutātor — (lat.), eine Vorrichtung an einer elektrischen Batterie, welche bezweckt, dem elektrischen Strom in der Drahtleitung die entgegengesetzte Richtung zu geben, er findet bei Telegraphen Anwendung. Bei elektro magnetischen Rotationsmaschinen bewirkt… …   Pierer's Universal-Lexikon

  • Commutator — Commutator, lat., in der Physik eine Vorrichtung, um die Richtung des elektrischen Stroms in einem Drathe schnell umzukehren …   Herders Conversations-Lexikon

  • commutator — 1839, agent noun in Latin form from L. commutare (see COMMUTE (Cf. commute)) …   Etymology dictionary

  • commutator — ► NOUN ▪ an attachment connected with the armature of a motor or dynamo, through which electrical contact is made and which ensures the current flows as direct current …   English terms dictionary

  • commutator — [käm′yə tāt΄ər] n. [< L commutatus (pp. of commutare,COMMUTE) + OR] 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… …   English World dictionary

  • Commutator — This article is about the mathematical concept. For the relation between canonical conjugate entities, see canonical commutation relation. For the type of electrical switch, see commutator (electric). In mathematics, the commutator gives an… …   Wikipedia

  • commutator — /ˈkɒmjuteɪtə/ (say komyoohtaytuh) noun a device for reversing the direction of an electric current especially in a dynamo or motor. See slip ring commutator, split ring commutator …   Australian English dictionary

  • commutator — komutatorius statusas T sritis automatika atitikmenys: angl. commutator vok. Kommutator, m rus. коммутатор, m pranc. commutateur, m …   Automatikos terminų žodynas

  • commutator — perjungiklis statusas T sritis automatika atitikmenys: angl. change over switch; commutator; reverser; switch; throw over switch vok. Schalter, m; Umschalter, m rus. переключатель, m pranc. commutateur, m; inverseur, m …   Automatikos terminų žodynas

  • commutator — kolektorius statusas T sritis chemija apibrėžtis Medžiaga, kurios dedama į tirpalą kitai medžiagai išskirti. atitikmenys: angl. collector; commutator rus. коллектор …   Chemijos terminų aiškinamasis žodynas

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