(electronics, computing) A miniature switch designed to be attached to a circuit board to customize the behavior of the circuit.

(video games) A control on some joysticks, used to manipulate the point of view.

(radio) A switch allows one to select which antenna to use with a transmitter, receiver, or transceiver

A type of stepping switch able to select on two axes, formerly widely used in telephone exchanges.

An electromechanical device which connects an input to one of a number of outputs according to how many electrical pulses it has received on its input.

(computing, networking) A high-capacity switch usually at the core or backbone of a computer network, aggregating network traffic to the Internet or a WAN.

Panicum virgatum, a dominant species of the central North American tallgrass prairie.

A technique by which a laser can be made to produce a pulsed output beam, with much higher power in each pulse than would be produced when operating as a continuous wave.

present participle of Q-switch

A switch that opens and closes an electric circuit through a small amount of liquid mercury.