Elect.
a switch in which a projecting knob or arm, moving through a small arc, causes the contacts to open or close an electric circuit suddenly, as commonly used in most homes.
[ 1920-25 ]
Elect.
a switch in which a projecting knob or arm, moving through a small arc, causes the contacts to open or close an electric circuit suddenly, as commonly used in most homes.
[ 1920-25 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012