Piston
WordNet
noun
(1) Mechanical device that has a plunging or thrusting motion
(2) United States neoclassical composer (1894-1976)
WiktionaryText
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)
- A valve device in some brass instruments for changing the pitch
Noun
- piston
- contact, connection
- Pour trouver un boulot par ici, il faut avoir des pistons. To get a job round here you need connections.