piston definition

  • noun:
    • A solid cylinder or disk that meets snugly into a larger cylinder and moves under liquid pressure, like in a reciprocating engine, or displaces or compresses liquids, as with pumps and compressors.
    • songs A valve method in metal tools for modifying the pitch.
    • a good disk or cylinder that meets inside a hollow cylinder, and moves under great pressure (such as an engine) or displaces fluid (such as a pump)
    • A valve product in certain brass tools for altering the pitch
    • A sliding piece which either is moved by, or techniques against, fluid force. It frequently comes with a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It really is utilized in vapor motors to receive motion from steam, and in pumps to transfer motion to a fluid; also for other purposes.
    • In equipment, a movable piece, usually of a cylindrical kind, therefore fitted regarding fill the sectional section of a tube, including the barrel of a pump and/or cylinder of a steam-engine, and with the capacity of becoming driven alternatively in 2 instructions by stress on a single or perhaps the other of its sides.
    • In musical wind-instruments for the trumpet household, one of many types of valve whereby a crook is temporarily included with the pipe plus the pitch of this shades changed.
    • In organ-building, a thumb-knob which may be pushed in like a piston, wherein some improvement in enrollment is pneumatically effected; a pneumatic coupler or combo knob.
    • The central retractile part of the acetabulum or sucker of a cephalopod, whoever activity in producing vacuum pressure resembles that of the piston of an air-pump.
    • US neoclassical composer (1894-1976)
    • mechanical device that includes a plunging or thrusting movement

Related Sources

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    • A solid cylinder or disk that meets snugly…
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