Cylinder

n.	1.
	1.	(Geom.) A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular.
	2.	(Print.) Any hollow body of cylindrical form
	3.	The revolving square prism carrying the cards in a Jacquard loom. Cylinder axis (Anat.) See Axis cylinder, under Axis. Cylinder engine (Paper Making) a machine in which a cylinder takes up the pulp and delivers it in a continuous sheet to the dryers. Cylinder escapement See Escapement. Cylinder glass See Glass. Cylinder mill See Roller mill. Cylinder press See Press.

Noun	1.	cylinder - a cylindrical container for oxygen or compressed air
	2.	cylinder - a solid bounded by a cylindrical surface and two parallel planes (the bases)
	3.	cylinder - a surface generated by rotating a parallel line around a fixed line
	4.	cylinder - a chamber within which piston moves Synonyms: piston chamber

(storage)

cylinder - 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.

barrel, brake drum, drum, pipe, round shape, shank, stalactite, stalagmite, stem, tube