A cyclone furnace consists of a horizontal cylindrical barrel attached through the side of a boiler furnace.

Unlike his brother, he abandoned ship and held on to a cylindrical barrel until he was saved several hours later.

A basic CPT instrument reports tip resistance and shear resistance along the cylindrical barrel.

This makes them fatter than a cylindrical barrel of equivalent weight but the centre of gravity is further forward and so theoretically easier to throw.

A fiber-optic connector is basically a rigid cylindrical barrel surrounded by a sleeve that holds the barrel in its mating socket.

The cylindrical "barrel" consists of 61,200 crystals formed into 36 "supermodules", each weighing around three tonnes and containing 1700 crystals.

This has a cylindrical barrel containing the fire tubes, but also has an extension at one end to house the "firebox".

This firebox has an open base to provide a large grate area and often extends beyond the cylindrical barrel to form a rectangular or tapered enclosure.

Gradually, rifles appeared with cylindrical barrels cut with helical grooves, the surfaces between the grooves being "lands".