plutonium (n.)youdaoicibaDictYouDict[plutonium 词源字典]
transuranic element, 1942, from Pluto, the planet, + element ending -ium. Discovered at University of California, Berkeley, in 1941, the element named on suggestion of Seaborg and Wahl because it follows neptunium in the periodic table as Pluto follows Neptune in the Solar System. The name plutonium earlier had been proposed for barium and was sometimes used in this sense early 19c.[plutonium etymology, plutonium origin, 英语词源]
PuranayoudaoicibaDictYouDict
ancient Sanskrit writings of a legendary character, 1690s, from Sanskrit puranah, literally "ancient, former," from pura "formerly, before," cognate with Greek paros "before," pro "before," Avestan paro "before," Old English fore, from PIE *pre-, from root *per- (1) "forward, through" (see per). Related: Puranic.
Quran (n.)youdaoicibaDictYouDict
1876, variant spelling (preferred by scholars) of Koran (q.v.), from Arabic qur'an, literally "book, reading, recitation," from qara'a "to read." Related: Quranic.