Any object in the form of a circular cylinder.
A surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve.
The part of a revolver that contains chambers for the cartridges.
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.
A cylindrical cavity or chamber in a mechanism, such as the counterpart to a piston found in a piston-driven engine.
The corresponding tracks on a vertical arrangement of disks in a disk drive considered as a unit of data capacity.
The space in which a piston travels inside a reciprocating engine or pump.
A solid figure bounded by a cylinder and two parallel planes intersecting the cylinder.
To calender; to press (paper, etc.) between rollers to make it glossy.
A rectangular hole or slot.
A hidden container that holds a logbook and rubber stamp, found by following clues as a form of recreation.
A delivery point for mail, a box, compartment or slot for this purpose.
A collection point for mail intended for onward delivery, a secure box or receptacle for this purpose.
To transfer a widescreen motion picture to home video formats while preserving the original aspect ratio, with the placing of black bars above and below the picture area.
To hunt for letterboxes (containers with logbook and rubber stamp) by following clues.
Transferred to home video formats while preserving the original aspect ratio, having black bars above and below the picture area.