cylinder /silˈin-dər/

1. A solid figure of uniform cross-section generated by a straight line remaining parallel to a fixed axis and moving round a closed curve, ordinarily in a circle perpendicular to the axis (giving a right circular cylinder)
2. A roller-shaped object
3. A cylindrical part, solid or hollow, such as a rotating part of a printing press, the tubular chamber in which a piston works (mechanics)
4. All the tracks on the same radius on a disk (computing)

cylindrāˈceous adjective

Somewhat cylindrical

cylinˈdric or cylinˈdrical adjective

cylinˈdrically adverb

cylindricity /-drisˈi-ti/ noun

cylinˈdriform adjective

In the form of a cylinder

cylinˈdrite noun

A mineral of cylindrical habit, compound of tin, lead, antimony and sulphur

cylˈindroid noun

A body like a cylinder (also adjective)

cylinder block noun

A casing in which the cylinders of an internal-combustion engine are contained

cylinder head noun

The closed end of the cylinder of an internal-combustion engine

cylinder lock noun

A type of lock comprising a movable cylinder which can be rotated inside a fixed cylinder only when the correct key is inserted

cylinder seal noun

A stone engraved in intaglio, used in the ancient East for rolling an impression on clay tablets

cylindrical grinding noun (engineering)

The operation of accurately finishing cylindrical work by a high-speed abrasive wheel

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