Cylinder

Part of Speech

Noun

Pronunciation

IPA: /ˈsɪl.ɪn.dər/

Definitions

• A solid or hollow geometric shape with straight parallel sides and a circular or oval cross-section.
• A part of an engine in which a piston moves up and down.
• A cylindrical object or structure, such as a gas cylinder or printing cylinder.

Usage Examples

• "The engineer measured the volume of the cylinder."
• "The car engine has four cylinders for better performance."
• "The gas cylinder was filled with compressed air."

Etymology

From the Old French 'cylindre,' from the Latin 'cylindrus,' and from the Greek 'kylindros,' meaning 'roller' or 'cylinder.'

Synonyms

• Tube
• Drum
• Piston chamber
• Roll

Antonyms

• Flat surface
• Sphere
• Cube

Translations

Regional Pronunciation Variations

• English (US): /ˈsɪl.ɪn.dɚ/
• English (UK): /ˈsɪl.ɪn.də/

Historical Usage

The term 'cylinder' has been in use since the 14th century to describe geometric shapes and mechanical components. It was also used historically in printing technology and early scientific instruments.

Cultural Nuances

Cylinders are critical in various fields, from automotive engineering (engine cylinders) to industrial applications (gas cylinders) and even ancient artifacts like the Cyrus Cylinder, which records the conquest of Babylon.

More Information

In mathematics, a cylinder is a three-dimensional shape with congruent circular bases. In mechanical engineering, cylinders house pistons that convert pressure into mechanical motion. In ancient history, the Cyrus Cylinder is considered one of the earliest declarations of human rights.