Definitions for pistonˈpɪs tən

This page provides all possible meanings and translations of the word piston

Random House Webster's College Dictionary

pis•tonˈpɪs tən(n.)

  1. a disk or solid cylinder moving within a longer cylinder and exerting pressure on, or receiving pressure from, a fluid or gas.

    Category: Machinery

  2. a pumplike valve used to change the pitch in a cornet or the like.

Origin of piston:

1695–1705; < F < It pistone piston, a learned alter. of pestone large pestle =pest(are) to pound (var. of ML pistare, der. of L pīstus, ptp. of pīnsere to pound) +-one aug. suffix

Pis•tonˈpɪs tən(n.)

  1. Walter, 1894–1976, U.S. composer.

    Category: Biography

Princeton's WordNet

  1. Piston, Walter Piston(noun)

    United States neoclassical composer (1894-1976)

  2. piston, plunger(noun)

    mechanical device that has a plunging or thrusting motion

Wiktionary

  1. piston(Noun)

    A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)

  2. piston(Noun)

    A valve device in some brass instruments for changing the pitch

  3. Origin: From piston.

Webster Dictionary

  1. Piston(noun)

    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

Freebase

  1. Piston

    A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder wall.


Translations for piston

Kernerman English Multilingual Dictionary

piston(noun)

(in engines, pumps etc) a round piece usually of metal that fits inside a cylinder and moves up and down or backwards and forwards inside it.

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