1. a three-dimensional shape with straight parallel sides and circular or oval cross sections
Usage: geometry
2. a hollow or solid object shaped like a cylinder
3. the chamber in an engine where fuel is burned or steam acts on a piston
Usage: automotive; mechanical

Examples

• The math teacher drew a cylinder on the whiteboard.
• We calculated the volume of the cylinder using the formula.
• The gas tank was shaped like a large metal cylinder.
• She stored the documents in a cardboard cylinder.
• The car’s engine has six cylinders.
• One cylinder in the engine was misfiring.
• The hydraulic cylinder lifted the heavy machinery.