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Piston   /pˈɪstən/   Listen
noun
Piston  n.  (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.






Collaborative International Dictionary of English 0.48








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"Piston" Quotes from Famous Books



... forever. It was daunting to think that before a space ship could be built and powered and equipped with machinery there had to be such wildly irrelevant plans worked out as a proper check of controls for the piston-engine ships that flew parts to the ...
— Space Platform • Murray Leinster

... his eye fell upon the garden-syringe with which Athelstane sometimes cleaned the motor-bicycle. It had been left, with a bucket of water, outside the shed. He drew out the piston, filled the syringe, then discharged its contents straight at the dog. But at that most unlucky moment a quick change took place on the wall; the collie retired in favor of his master, and the stream of water charged ...
— A Popular Schoolgirl • Angela Brazil

... all descriptions. The larger specimens had a case to themselves, and tickets with writing on them in a character which I could not understand. There were fragments of steam engines, all broken and rusted; among them I saw a cylinder and piston, a broken fly-wheel, and part of a crank, which was laid on the ground by their side. Again, there was a very old carriage whose wheels in spite of rust and decay, I could see, had been designed originally for iron rails. Indeed, there were ...
— Erewhon • Samuel Butler

... in Cuba, as plentiful as blackberries; but, as they 'never perform out of' the island, their renown is purely local. The mulatto, Urriola, is famous for his performances on the cornet-a-piston and the double-bass, and his young son is a favourite flute-player. Lino Boza is the name of a distinguished negro performer on the clarionet. He is also a popular composer of Cuban dance music. These musical geniuses are all free, and reside in La Calle del Rey Pelayo—a ...
— The Pearl of the Antilles, or An Artist in Cuba • Walter Goodman

... most Negroes in the Air Force favored integration, some were disturbed by the prospect of competition with whites of equivalent rank that would naturally follow. Many of the black officers were overage in grade, their proficiency geared to the F-51, a wartime piston plane, and they were the logical victims of any reduction in force that might occur in this period of reduced military budgets.[16-9] Some men doubted that the new program, as they imperfectly understood it, would truly integrate the service. ...
— Integration of the Armed Forces, 1940-1965 • Morris J. MacGregor Jr.


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