1
- of or arranged like rays or the radii of a circle; diverging in lines from a common centre光线（状）的, 射线（状）的, 半径（状）的; 放射（状）的, 辐射（状）的, 辐式的。
1.1
- (of a road or route) running directly from a town or city centre to an outlying district（道路, 路线）由城镇中心直接通往边远地区的。
1.2
- （亦作radial-ply /-plaɪ/）denoting a tyre in which the layers of fabric have their cords running at right angles to the circumference of the tyre and the tread is strengthened by further layers round the circumference（轮胎）子午线式的。
1.3
- denoting an internal-combustion engine with its cylinders fixed like the spokes of a wheel around a rotating crankshaft (a type used chiefly in aircraft)星形内燃机的。
2
- Anatomy & Zoology of or relating to the radius【剖, 动】（与）桡骨（有关）的, （与）径骨（有关）的。
1
- a radial tyre子午线轮胎, 子午胎。
2
- a radial road辐射道路。
3
- Zoology a supporting ray in a fish's fin【动】鳍辐骨, 辐状鳍条。
4
- a radial engine星形发动机。
派生词
radially
adverb词源
late 16th cent.: from medieval Latin radialis, from Latin radius （see RADIUS）.