| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024lu•te•ci•um (lo̅o̅ tē′shē əm),USA pronunciation n. [Chem.]- Chemistrylutetium.
WordReference Random House Unabridged Dictionary of American English © 2024lu•te•ti•um (lo̅o̅ tē′shē əm),USA pronunciation n. [Chem.]- Chemistrya trivalent rare-earth element. Symbol: Lu;
at. wt.: 174.97;
at. no.: 71.
Also, lutecium. - Latin Lūtēt(ia) Paris + -ium
- 1905–10
Collins Concise English Dictionary © HarperCollins Publishers:: lutetium, lutecium /lʊˈtiːʃɪəm/ n - a silvery-white metallic element of the lanthanide series, occurring in monazite and used as a catalyst in cracking, alkylation, and polymerization. Symbol: Lu; atomic no: 71; atomic wt: 174.967; valency: 3; relative density: 9.841; melting pt: 1663°C; boiling pt: 3402°C
Etymology: 19th Century: New Latin, from Latin Lūtētia ancient name of Paris, home of G. Urbain (1872–1938), French chemist, who discovered it |