cylinder
/ˈsɪləndɚ/ noun C1- A surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve.
- A solid figure bounded by a cylinder and two parallel planes intersecting the cylinder.
- Any object in the form of a circular cylinder.
- A cylindrical cavity or chamber in a mechanism, such as the counterpart to a piston found in a piston-driven engine.
- The space in which a piston travels inside a reciprocating engine or pump.
- A container in the form of a cylinder with rounded ends for storing pressurized gas; a gas cylinder.
- An early form of phonograph recording, made on a wax cylinder.
- The part of a revolver that contains chambers for the cartridges.
Plural cylinders
From the library
Across the centre of it was lying a little cylinder of blue-grey paper.
Out of this hiding-place he drew that little cylinder of paper, pushed down the board, rearranged the carpet, blew out the candles, and walked straight into my arms as I stood waiting for him outside the window.
In the ray of light which entered by the narrow window of his cell, he held open in his left hand, of which alone, it will be recollected, he retained the use, a sheet of paper, which, from being constantly rolled into a small compass, had the form of a cylinder, and was not easily kept open.
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