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gallium

   Also found in: Medical, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
gal·li·um  (gl-m)
n. Symbol Ga
A rare metallic element that is liquid near room temperature, expands on solidifying, and is found as a trace element in coal, bauxite, and other minerals. It is used in semiconductor technology and as a component of various low-melting alloys. Atomic number 31; atomic weight 69.72; melting point 29.78°C; boiling point 2,403°C; specific gravity 5.907; valence 2, 3. See Table at element.

[From Latin gallus, cock, punning translation of surname of Paul Émile Lecoq de Boisbaudran (1838-1912), French chemist and element's discoverer : French le, the + French coq, rooster.]

gallium [ˈgælɪəm]
n
(Chemistry / Elements & Compounds) a silvery metallic element that is liquid for a wide temperature range. It occurs in trace amounts in some ores and is used in high-temperature thermometers and low-melting alloys. Gallium arsenide is a semiconductor. Symbol: Ga; atomic no.: 31; atomic wt.: 69.723; valency: 2 or 3; relative density: 5.904; melting pt.: 29.77°C; boiling pt.: 2205°C
[from New Latin, from Latin gallus cock, translation of French coq in the name of its discoverer, Lecoq de Boisbaudran, 19th-century French chemist]

gallium  (gl-m)
Symbol Ga
A rare, silvery metallic element that is found as a trace element in coal, in bauxite, and in several minerals. It is liquid near room temperature and expands when it solidifies. It is used in thermometers and semiconductors. Atomic number 31; atomic weight 69.72; melting point 29.78°C; boiling point 2,403°C; specific gravity 5.907; valence 2, 3. See Periodic Table.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.gallium - a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
bauxite - a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst
Translations
gallium [ˈgælɪəm] Ngalio m


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? Mentioned in ? References in periodicals archive
 
Tokyo, Japan, Aug 18, 2006 - (JCN Newswire) - NEC Corporation today announced the successful development of a compact gallium nitride (GaN, 1*) power transistor amplifier, which boasts the world's highest output power level of 400W while featuring low-distortion characteristics, for third generation (3G) base stations.
The Lund team first deposits gold particles that are 40 to 70 nanometers in diameter on a small wafer of gallium phosphide.
Gallium nitride and related alloy materials are making enormous economic impact with the realization of semiconductor lasers and light-emitting diodes emitting in the blue for data storage, solid-state lighting, and displays.
 
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