cylinder
//ˈsɪl.ɪn.dər//
Noun
cylinderSingular
cylindersPlural
1
A solid or hollow geometric shape with straight parallel sides and a circular or oval cross-section.
The can is shaped like a cylinder.
2
A chamber in an engine in which a piston moves up and down.
This car has a four-cylinder engine.
3
A cylindrical container, especially one used for storing gas under pressure.
The diver checked the oxygen cylinder before entering the water.