/ ˈreɪdiəl; NAmE / adjective , noun
■ adjective
having a pattern of lines, etc. that go out from a central point towards the edge of a circle :
the radial pattern of public transport facilities
► ra·di·al·ly / -iəli; NAmE / adverb
■ noun
( BrE also ˌradial ˈtyre ) ( NAmE also ˌradial ˈtire ) a car tyre with strong parts inside that point away from the outside part and make the tyre stronger and safer
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WORD ORIGIN
late 16th cent.: from medieval Latin radialis , from Latin radius staff, spoke, ray .