three-way switch

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Definition of three-way switch in English English dictionary

three-way switch
A type of light switch which can be arranged in pairs to control lights from two locations, as at either end of a stairway or long hallway
three-way switch
an electric switch that has three terminals; used to control a circuit from two different locations
three-way switch

    Pronunciation

    Etymology

    () Named after its three electrical connections, as opposed to a normal light switch's two.
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