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germanium
[ jer-mey-nee-uhm ]
noun
- a scarce, metallic, grayish-white element, normally tetravalent, used chiefly in transistors. : Ge; : 72.59; : 32; : 5.36 at 20°C.
germanium
/ ɜːˈɪɪə /
noun
- 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
germanium
/ ə-′ŧ-ə /
- A brittle, crystalline, grayish-white metalloid element that is found in coal, in zinc ores, and in several minerals. It is used as a semiconductor and in wide-angle lenses. Atomic number 32; atomic weight 72.59; melting point 937.4°C; boiling point 2,830°C; specific gravity 5.323 (at 25°C); valence 2, 4.
- See Periodic Table
yvlog History and Origins
Origin of germanium1
yvlog History and Origins
Origin of germanium1
Example Sentences
To develop their defect-free fibres, the NTU-led team selected pairs of common semiconductor material and synthetic material -- a silicon semiconductor core with a silica glass tube and a germanium core with an aluminosilicate glass tube.
In August, Beijing countered with its own trade curbs: It began requiring that Chinese exporters of gallium and germanium, metals used in computer chips and solar cells, obtain government licenses to send those metals overseas.
If China persists with export restrictions, as it has with commodities like as germanium and graphite, supply could be further compromised.
China has imposed export curbs on two metals used in computer chips and solar cells — gallium and germanium — that it said were intended to “safeguard national security.”
The curbs by China also could lower exports and raise prices, just like they did after a similar move in August for two chip-making metals, gallium and germanium.
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