名詞 radial:

1. pneumatic tire that has radial-ply casing
   同義詞：radial tire, radial-ply tire

形容詞 radial:

1. relating to or near the radius
2. relating to or moving along or having the direction of a radius
3. issuing in rays from a common center; relating to rays of light
4. arranged like rays or radii; radiating from a common center
   同義詞：stellate

ra.di.al

adj.（形容詞）

Of, relating to, or arranged like rays or radii.
光線的，射線的：屬于或關(guān)于光線或輻光線的，象光線或輻光線一樣排列的
Radiating from or converging to a common center.
放射的：從一個(gè)中心發(fā)射出的或聚于一個(gè)中心的
Having or characterized by parts so arranged or so radiating.
輻射狀的：表現(xiàn)為如此排列或發(fā)射的部分的或以之為特征的
Moving or directed along a radius.
沿著或向著半徑移動(dòng)的
Anatomy Of, relating to, or near the radius or forearm.
【解剖學(xué)】 橈骨的：屬于、關(guān)于或靠近橈骨或前臂的
Developing symmetrically about a central point.
對(duì)稱發(fā)展的：在一個(gè)中心點(diǎn)周圍對(duì)稱發(fā)展的
n.（名詞）
A radial part, such as a ray, spoke, or radius.
放射部：輻射狀的部分，如光線、輪輻或半徑
A radial tire.
子午線輪胎

來源：
Middle English
中古英語
from Medieval Latin radi3lis
源自 中世紀(jì)拉丁語 radi3lis
from Latin radius [ray]
源自 拉丁語 radius [光線]

【引伸】
ra.dially
adv.（副詞）