| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024er•bi•um (ûr′bē əm),USA pronunciation n. [Chem.]- Chemistrya rare-earth metallic element, having pink salts. Symbol: Er;
at. wt.: 167.26;
at. no.: 68.
- Neo-Latin, named after Ytterby, Sweden, where first found; see -ium
- 1835–45
Collins Concise English Dictionary © HarperCollins Publishers:: erbium /ˈɜːbɪəm/ n - a soft malleable silvery-white element of the lanthanide series of metals: used in special alloys, room-temperature lasers, and as a pigment. Symbol: Er; atomic no: 68; atomic wt: 167.26; valency: 3; relative density: 9.006; melting pt: 1529°C; boiling pt: 2868°C
Etymology: 19th Century: from New Latin, from (Ytt)erb(y), Sweden, where it was first found + -ium |