Cylinder meaning

sĭl'ən-dər
The rotating chamber of a revolver that holds the cartridges.
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A cylindrical stone or clay object with an engraved design or inscription.
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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.
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The aggregate of all tracks that reside in the same location on every disk surface. On multiple-platter disks, the cylinder is the sum total of every track with the same track number on every surface. On a floppy disk, a cylinder comprises the top and corresponding bottom track.When storing data, the operating system fills an entire cylinder before moving to the next one. The access arm remains stationary until all the tracks in the cylinder have been read or written.
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(geometry) A surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve.

When the two-dimensional curve is a circle, the cylinder is called a circular cylinder. When the axis is perpendicular to the plane of the curve, the cylinder is called a right cylinder. In non-mathematical usage, both right and circular are usually implied.

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(geometry) A solid figure bounded by a cylinder and two parallel planes intersecting the cylinder.
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Any object in the form of a circular cylinder.
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A cylindrical cavity or chamber in a mechanism, such as the counterpart to a piston found in a piston-driven engine.
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A container in the form of a cylinder with rounded ends for storing pressurized gas.
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An early form of phonograph recording, made on a wax cylinder.
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A cylindrical container or object.
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Any of several rotating parts in a printing press, especially one that carries the paper.
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Anything having the shape of a cylinder, whether hollow or solid.
  • The turning part of a revolver, containing chambers for cartridges.
  • The chamber in which the piston moves in a reciprocating engine.
  • The barrel of a pump.
  • On a printing press, a roller carrying the printing plates or the part receiving the impression.
  • A large, hollow, cylindrical clay object with cuneiform inscriptions, or a similar small stone worn on the wrist in ancient times in the Middle East.
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The part of a revolver that contains chambers for the cartridges.
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(computing) The corresponding tracks on a vertical arrangement of disks in a disk drive considered as a unit of data capacity.
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The definition of a cylinder is a three dimensional shape with two round shapes at either end and two parallel lines connecting the round ends.

An example of cylinder is a can of tomato soup.

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Origin of cylinder

  • Latin cylindrus from Greek kulindros from kulindein to roll
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Middle French cylindre, from Latin cylindrus, from Ancient Greek κύλινδρος (kulindros).
    From Wiktionary