an internal-combustion engine having cylinders arranged radially around a central crankcase
pneumatic tire that has radial-ply casing
motor that converts thermal energy to mechanical work
something used to achieve a purpose
a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
arranged like rays or radii; radiating from a common center
an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc.