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.

plural of valve

Third-person singular simple present indicative form of valve

Having valves.

simple past tense and past participle of valve

present participle of valve

(automotive) A type of internal combustion engine design which has the inlet and exhaust valves in the cylinder block beside the piston. The cylinder head is then a simple dome extending across the valves and piston.

(automotive) A type of internal combustion engine design which has the inlet and exhaust valves in the cylinder head (and therefore above the piston). The camshaft can be beside the pistons (with pushrods and rockers operating the valves) or above the valves, with the latter usually referred to as overhead cam.

plural of relief valve