from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A type of
light switchwhich can be arranged in pairs to control lights from two locations, as at either end of a stairway or long hallway.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an electric switch that has three terminals; used to control a circuit from two different locations
from Wiktionary, Creative Commons Attribution/Share-Alike License
Named after its three electrical connections, as opposed to a normal light switch's two.
Sorry, no example sentences found.