| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024tel•lu•ri•um (te lŏŏr′ē əm),USA pronunciation n. [Chem.]- Chemistrya rare, lustrous, brittle, crystalline, silver-white element resembling sulfur in its properties, and usually occurring in nature combined with gold, silver, or other metals of high atomic weight: used in the manufacture of alloys and as a coloring agent in glass and ceramics. Symbol: Te;
at. wt.: 127.60;
at. no.: 52;
sp. gr.: 6.24.
- Neo-Latin (1798), equivalent. to Latin tellūr- (stem of tellūs) earth + -ium
Collins Concise English Dictionary © HarperCollins Publishers:: tellurium /tɛˈlʊərɪəm/ n - a brittle silvery-white nonmetallic element occurring both uncombined and in combination with metals: used in alloys of lead and copper and as a semiconductor. Symbol: Te; atomic no: 52; atomic wt: 127.60; valency: 2, 4, or 6; relative density: 6.24; melting pt: 449.57±0.3°C; boiling pt: 988°C
Etymology: 19th Century: New Latin, from Latin tellūs the earth, formed by analogy with uranium |