piston
see also: Piston
Etymology

From French piston.

Pronunciation Noun

piston (plural pistons)

  1. (mechanics) 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. (music) A valve device in some brass instruments for changing the pitch
Translations Translations Translations Verb

piston (pistons, present participle pistoning; simple past and past participle pistoned)

  1. (intransitive) To move up and down or in and out like a piston.

Piston
Proper noun
  1. Surname.



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