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.
radiate (adj.)
"having rays, furnished with rays, shining," 1660s, from Latin radiatus (see radiate (v.)).
权威例句
1. Callahan posits that chemical elements radiate electromagnetic signals.
卡拉汉假定化学元素放射电磁信号。
2. Stoves are meant to radiate heat.
炉子就是要发热的。
3. Avenues radiate from the Arc de Triomphe in Paris.