noun
: a manually operated electric switch with a blade which makes contact with a snap and in which the speed of making or breaking of the circuit is independent of the speed of operation of the switch
noun
: a manually operated electric switch with a blade which makes contact with a snap and in which the speed of making or breaking of the circuit is independent of the speed of operation of the switch
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012