Piston rod

Piston rod
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. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • piston rod — n. a connecting rod attached to a piston and the crankshaft …   English World dictionary

  • Piston rod — In a piston engine, a piston rod joins a piston to a connecting rod.Many internal combustion engines, and in particular all current automobile engines, do not have true piston rods, and the term piston rod is often used as a synonym for… …   Wikipedia

  • piston rod — noun connecting rod that moves or is moved by a piston • Hypernyms: ↑connecting rod • Part Holonyms: ↑piston, ↑plunger …   Useful english dictionary

  • piston rod — a rod communicating the rectilinear motion of a piston to the small end of a connecting rod or elsewhere. [1780 90] * * * …   Universalium

  • piston rod — pis′ton rod n. aum a rod that transmits the motion of a piston in an engine or pump • Etymology: 1780–90 …   From formal English to slang

  • piston rod — /ˈpɪstən rɒd/ (say pistuhn rod) noun the rod which connects the piston of a reciprocating steam engine to the crosshead …  

  • piston rod — noun a rod or bar in an engine that connects a piston to a crosshead …   Wiktionary

  • piston rod — noun a rod or crankshaft attached to a piston to drive a wheel or to impart motion …   English new terms dictionary

  • piston rod — A shock absorber rod which operates the piston in a telescopic damper …   Dictionary of automotive terms

  • piston rod — noun Date: 1786 connecting rod …   New Collegiate Dictionary

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