Definition of cylinder

• n. - A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular.
• n. - The space inclosed by any cylindrical surface. The space may be limited or unlimited in length.
• n. - Any hollow body of cylindrical form
• n. - The chamber of a steam engine in which the piston is moved by the force of steam.
• n. - The barrel of an air or other pump.
• n. - The revolving platen or bed which produces the impression or carries the type in a cylinder press.
• n. - The bore of a gun; the turning chambered breech of a revolver.
• n. - The revolving square prism carrying the cards in a Jacquard loom.