A device that controls the flow of a gas or fluid through a pipe. / A device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit.

(transitive) To control (flow) by means of a valve.

Having valves.

simple past tense and past participle of valve

plural of valve

Third-person singular simple present indicative form of valve

present participle of valve

A relief valve set to open at a pressure below that at which a container (such as a boiler) would burst. / (figuratively) Any mechanism offering relief from pressure or tension, e.g. emotionally.

(chiefly historical) An electronic device incorporating electrons from a glowing cathode inside an evacuated glass tube, functioning as a switch, amplifier etc.

(in an internal combustion engine) a valve through which the products of combustion escape from the cylinder to the manifold