RADII
\ɹˈe͡ɪdɪˌa͡ɪ], \ɹˈeɪdɪˌaɪ], \ɹ_ˈeɪ_d_ɪ__ˌaɪ]\
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In geom., a straight line drawn or extending from the centre of a circle to its circumference; the spoke of a wheel; in anat., the exterior or smaller bone of the forearm, reaching from the elbow to the wrist, above the thumb; in bot., the ray or outer part of the heads of composite flowers.
By Stormonth, James, Phelp, P. H.
