An engine, usually an internal-combustion engine of a certain type (the radial type) having several cylinders arranged radially like the spokes of a complete wheel. The semiradial engine has radiating cylinders on only one side of the crank shaft.
Cylinders arranged radially around the crankshaft. In this case a 1850hp Wright R-2600-29 Cyclone 14-cylinder radial. Note that this is effectively two 7 cylinder radials back to back with the rear bank of cylinders being rotated half the cylinder to cylinder spacing. See also: Engine Configurations.
A type of engine, usually air-cooled, whose cylinders are arranged like the spokes of a wheel.