|1.||a solid consisting of two parallel planes bounded by identical closed curves, usually circles, that are interconnected at every point by a set of parallel lines, usually perpendicular to the planes. Volume base area × length|
|2.||a surface formed by a line moving round a closed plane curve at a fixed angle to it|
|3.||any object shaped like a cylinder|
|4.||See also cylinder block the chamber in a reciprocating internal-combustion engine, pump, or compressor within which the piston moves|
|5.||the rotating mechanism of a revolver, situated behind the barrel and containing cartridge chambers|
|6.||printing any of the rotating drums on a printing press|
|7.||Also called: cylinder seal a cylindrical seal of stone, clay, or precious stone decorated with linear designs, found in the Middle East and Balkans: dating from about 6000 |
|8.||(Brit) Also called: hot-water cylinder a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system|
|9.||firing on all cylinders working or performing at full capability|
|10.||(tr) to provide (a system) with cylinders|
|[C16: from Latin cylindrus, from Greek kulindros a roller, from kulindein to roll]|
cylinder cyl·in·der (sĭl'ən-dər)
The surface generated by a straight line intersecting and moving along a closed plane curve, the directrix, while remaining parallel to a fixed straight line that is not on or parallel to the plane of the directrix.
A solid bounded by two parallel planes and such a surface, especially such a surface having a circle as its directrix.
A cylindrical or rodlike renal cast.
A cylindrical lens.
A cylindrical metal container for gases stored under high pressure.
|cylinder (sĭl'ən-dər) Pronunciation Key
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A three-dimensional surface or solid object bounded by a curved surface and two parallel circles of equal size at the ends. The curved surface is formed by all the line segments joining corresponding points of the two parallel circles.
see firing on all cylinders.