cylinder
noun
[ ˈsɪlɪndə ]
• a solid geometrical figure with straight parallel sides and a circular or oval cross section.
• a piston chamber in a steam or internal combustion engine.
• a cylinder-shaped container holding liquefied gas under pressure.
• a rotating metal roller in a printing press.
• a cylinder seal.
Origin:
late 16th century: from Latin cylindrus, from Greek kulindros ‘roller’, from kulindein ‘to roll’.