radial /ˈɹeɪdi.əl/adjective 7noun 3forms 3 adjective7 •Arranged like rays that radiate from, or converge to, a common centre.The spokes on most modern bicycle wheels are tangential to the hub rather than radial. •Of, or relating to a radius (line joining to a geometric centre).What is the relationship between arc length and radial length? •Moving or acting along a radius. •Having reinforcing cords placed in parallel across the tyre at 90 degrees to the direction of travel, especially as contrasted with cross-ply; see also radial tyre. •Of, or relating to the radius bone. •Developing uniformly on all sides. •Of, or relating to the radius (vein), and/or the wing areas next to it. noun3 •An item in a radial configuration, such as a spoke of a wheel. •A radial tire / radial tyre.Let me have my toaster and my TV and my steel-belted radials and I won't say anything. Just leave us alone. — 1976 •One of a set of earthing wires arranged radially around the base of a wireless antenna. formsradials · more radial · most radial