Cylinder

n. tube, tube-shaped figure; physical storage unit in a hard drive (Computers)

Cylinder may refer to:Cylinder (geometry), a three-dimensional geometric surfaceCylinder (algebra), the cartesian product of a set with its supersetCylinder (engine), the space within which a piston travels in an engineCylinder (steam locomotive)Cylinder (computer), a unit of data division on a hard disk driveHydraulic cylinder, a cylinder barrel with piston rod for pushing and pulling using pressurized fluidPneumatic cylinder, a cylinder barrel with piston rod for pushing and pulling using compressed gasesGas cylinder, containers used to store compressed gases or compressed airDiving cylinder, a type of gas cylinder used in Scuba divingGraduated cylinder, glassware used for measurement of liquids in laboratoriesPhonograph cylinder, the dominant medium of audio storage from the 1870s to the 1910s and in limited use (such as in the dictaphone) through the mid 20th centuryCylinder (firearms), the cylinder is the rotating device that contains the firing chambers of a revolverA type of lens and a form of refraction error
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Cylinder /cyl·in·der/ 1. a solid body shaped like a column.cylin´drical 2. cylindrical lens. axis cylinder axon. cyl·in·der n. 1. [more]Cylinder - Community and Resources

Noun
1. a cylindrical container for oxygen or compressed air
(hypernym) container
(part-holonym) aqualung, Aqua-Lung, scuba
2. a solid bounded by a cylindrical surface and two parallel planes (the bases)
(hypernym) solid
(hyponym) roll
3. a surface generated by rotating a parallel line around a fixed line
(hypernym) round shape
(hyponym) brake drum, drum
4. a chamber within which piston moves
(synonym) piston chamber
(hypernym) chamber
(hyponym) brake cylinder, hydraulic brake cylinder, master cylinder
(part-holonym) engine block, cylinder block, block
(part-meronym) intake valve

n. cylinder, tube, tube-shaped figure