| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ger•ma•ni•um ( jər mā′nē əm),USA pronunciation n. [Chem.]- Chemistrya scarce, metallic, grayish-white element, normally tetravalent, used chiefly in transistors. Symbol: Ge;
at. wt.: 72.59;
at. no.: 32;
sp. gr.: 5.36 at 20°C.
Collins Concise English Dictionary © HarperCollins Publishers:: germanium /dʒɜːˈmeɪnɪəm/ n - a brittle crystalline grey element that is a semiconducting metalloid, occurring principally in zinc ores and argyrodite: used in transistors, as a catalyst, and to strengthen and harden alloys. Symbol: Ge; atomic no: 32; atomic wt: 72.61; valency: 2 or 4; relative density: 5.323; melting pt: 938.35°C; boiling pt: 2834°C
Etymology: 19th Century: New Latin, named after Germany |