| 1. | Geometry. a surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes. |
| 2. | any cylinderlike object or part, whether solid or hollow. |
| 3. | the rotating part of a revolver, containing the chambers for the cartridges. |
| 4. | (in a pump) a cylindrical chamber in which a piston slides to move or compress a fluid. |
| 5. | (in an engine) a cylindrical chamber in which the pressure of a gas or liquid moves a sliding piston. |
| 6. | (in certain printing presses)
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| 7. | (in certain locks) a cylindrical device for retaining the bolt until tumblers have been pushed out of its way. |
| 8. | (in a screw or cylindrical gear) an imaginary cylindrical form, concentric to the axis, defining the pitch or the inner or outer ends of the threads or teeth. |
| 9. | Computers. the tracks of a magnetic disk that are accessible from a single radial position of the access mechanism. |
| 10. | Textiles. the main roller on a carding machine, esp. the roller covered with card clothing that works in combination with the worker and stripper rollers in carding fibers. |
| 11. | Archaeology. a cylindrical or somewhat barrel-shaped stone or clay object bearing a cuneiform inscription or a carved design, worn by the Babylonians, Assyrians, and kindred peoples as a seal and amulet. |
| 12. | to furnish with a cylinder or cylinders. |
| 13. | to subject to the action of a cylinder or cylinders. |

Cylinder
A term used to describe a transaction, involving two derivatives, where there is no initial cost bourne by the investor when entering into the position.
Investopedia Commentary
For example, an investor can sell a derivative and use its proceeds to purchase another security. A cylinder is different from a positive carry trade since it does not necessarily imply offsetting positions.
Related Links
Futures Fundamentals
See also: Derivative, Positive Carry, Zero Cost Collar
cylinder cyl·in·der (sĭl'ən-dər)
n.
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
(click for larger image in new window) 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. |
cylinder storage
The set of tracks on a multi-headed disk that may be accessed without head movement. That is, the collection of disk tracks which are the same distance from the spindle about which the disks rotate. Each such group forms the shape of a cylinder. Placing data that are likely to be accessed together in cylinders reduces the access significantly as head movement (seeking) is slow compared to disk rotation and switching between heads.
(1997-07-15)