three-way switch
English
Etymology
Named after its three electrical connections, as opposed to the two connections of a normal light switch.
Noun
Example application.
three-way switch (plural three-way switches)
- (US, electricity) A type of light switch that can be arranged in pairs to control lights from two locations, as at either end of a stairway or long hallway; a double-throw switch. (British): two-way switch.
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