- radiant (adj.)
[radiant 词源字典]
- mid-15c., from Middle French radiant and directly from Latin radiantem (nominative radians) "beaming, shining," present participle of radiare "to beam, shine" (see radiation). Of beauty, etc., first attested c. 1500. Related: Radiantly.[radiant etymology, radiant origin, 英语词源]
- radiant (n.)
- "point or object from which light radiates," 1727; see radiant (adj.). In astronomy, of meteor showers, from 1864.