词根：-radi-, -radio-

【词根含义】：射线,放射

【词根来源】：-radi-和-radio-来源于拉丁语名词rad.ius, rad.i, m(射线,放射)。

【同源单词】：radiant, radiate, radius, ray, radio

词根词缀：radio-, radi-, rad-

【来源及含义】Latin: ray, radiating [the Latin word for the spokes of a wheel is radius]; spoke, staff, rod

【同源单词】involuntary euthanasia, irradiance, irradiant, irradiate, radial, radian