lucent (adj.)youdaoicibaDictYouDict[lucent 词源字典]
mid-15c., "shining, bright, luminous," from Latin lucentem (nominative lucens), present participle of lucere "to shine" (see light (n.)). Meaning "lucid, clear" is from 1820. Related: Lucently.[lucent etymology, lucent origin, 英语词源]