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Meaning of PISTON

Pronunciation:  'pistun, 'pistun

WordNet Dictionary
  1. [n]  mechanical device that has a plunging or thrusting motion
  2. [n]  United States neoclassical composer (1894-1976)

PISTON is a 6 letter word that starts with P.


 Synonyms: plunger, Walter Piston
 See Also: composer, mechanical device, piston ring, piston rod, reciprocating engine



Webster's 1913 Dictionary
\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.