Definition of piston. Meaning of piston. Synonyms of piston

Here you will find one or more explanations in English for the word piston. Also in the bottom left of the page several parts of wikipedia pages related to the word piston and, of course, piston synonyms and on the right images related to the word piston.

Definition of piston

Piston
Piston Pis"ton, n. [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See Pestle, Pistil.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It usually consists of a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It is used in steam engines to receive motion from the steam, and in pumps to transmit motion to a fluid; also for other purposes. Piston head (Steam Eng.), that part of a piston which is made fast to the piston rod. Piston rod, a rod by which a piston is moved, or by which it communicates motion. Piston valve (Steam Eng.), a slide valve, consisting of a piston, or connected pistons, working in a cylindrical case which is provided with ports that are traversed by the valve.

Meaning of piston from wikipedia