radiate
v.
1610s, "spread in all directions from a point," from Latin radiatus, past participle of radiare "to beam, shine, gleam; make beaming" (see radiation). Meaning "be radiant, give off rays (of light or heat)" is from 1704. Related: Radiated; radiates; radiating.
adj.
"having rays, furnished with rays, shining," 1660s, from Latin radiatus (see radiate, v.).
〔李〕[radi;-atev.] v.发射光线； 辐射 n.辐射状的 ←radi (L radius)=spoke of a wheel 轮辐