noun:a part of an engine that moves up and down inside a tube and that causes other parts of the engine to move
noun:a sliding piece moved by or moving against fluid pressure which usually consists of a short cylindrical body fitting within a cylindrical chamber or vessel along which it moves back and forth
synonyms: plunger, ram, bucket
Movie quotes
(..) with the same amount of gravity. What can make something that small, That dense, and that powerful? We don't have external forces, large pistons in the universe, To create black holes. So the only way the real black holes of the universe form Is if gravity can do the job itself. (..)
