Crossword clues for gallium
gallium
The Collaborative International Dictionary
Ekaluminium \Ek*al`u*min"i*um\, n. [Skr. [=e]ka one + E. aluminium.] (Chem.) The name given to a hypothetical element, -- later discovered and called gallium. See Gallium, and cf. Ekabor.
Douglas Harper's Etymology Dictionary
metalic element that melts in the hand, discovered by spectral lines in 1875 by French chemist Lecoq de Boisbaudran (1838-1912), who named it apparently in honor of his homeland (see Gallic), but it has been suggested that he also punned on his own name (compare Latin gallus "cock," for which see gallinaceous).
Wiktionary
n. A chemical element (''symbol'' Ga) with an atomic number of 31; a soft bluish metal.
WordNet
n. 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 [syn: Ga, atomic number 31]
Wikipedia
Gallium is a chemical element with symbol Ga and atomic number 31. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Elemental gallium is a soft, silvery blue metal at standard temperature and pressure, a brittle solid at low temperatures, and a liquid at temperatures greater than (slightly above room temperature). The melting point of gallium is used as a temperature reference point. The alloy galinstan (68.5% gallium, 21.5% indium, and 10% tin) has an even lower melting point of , well below the freezing point of water.
Since its discovery in 1875, gallium has been used to make alloys with low melting points. It is also used in semiconductors as a dopant in semiconductor substrates.
Gallium is predominantly used in electronics. Gallium arsenide, the primary chemical compound of gallium in electronics, is used in microwave circuits, high-speed switching circuits, and infrared circuits. Semiconductive gallium nitride and indium gallium nitride produce blue and violet light-emitting diodes (LEDs) and diode lasers. Gallium is also used in the production of artificial gadolinium gallium garnet for jewelry.
Gallium has no known natural role in biology. Gallium(III) behaves in a similar manner to ferric salts in biological systems, and has been used in some medical applications, including pharmaceuticals and radiopharmaceuticals. Gallium is used in thermometers as a non-toxic and environmentally friendly alternative to mercury.
Gallium is a chemical element.
Gallium may also refer to:
- Gallium experiment, a neutrino detection experiment also known as GALLEX
- Gallium scan or gallium imaging, a method for the detection of infections and cancers
- Gallium3D, a software library for 3D graphics acceleration
Usage examples of "gallium".
These resonant tunnelling computer chips are constructed not of silicone, not even of the newest hyperfast conductive alloys, indium phosphide and aluminium gallium arsenide.
Laser transistors composed of atomic layers not of indium phosphide and aluminium gallium arsenide but of a monocrystalline diamond film were all well and good for high electron mobility (in fact, he was astounded that the Americans actually had perfected them) but, the Scoundrel knew, under the right circumstances they actually could work to his advantage.
The secret would be to make the hundreds of thousands of chips that would constitute the soul of the new computer not out of conventional silicon but out of a radical new material: gallium arsenide.
That is the miniature gallium arsenide photon detector, acting as a retina, and the surrounding banded area—.
He admitted that Aorangi badly wanted silicon, but pointed out that the materials for gallium arsenide, or boron and nitrogen for doping diamond, could probably be obtained from Kainu’.
Like Finn's, about a quarter of its brain was now made of silicon or gallium arsenide.
She went over to the nest of minuscule optical fibres connected to advanced gallium arsenide computer chips on a circuit board the size of the end of her thumb.
Monolithic microwave integrated circuits fashioned from gallium arsenide sped through thousands of complex algorithms that separated their armored prey from the snowy background of the German field, homing in on the tanks.
It's a highly specialized supercomputer that uses gallium arsenide CPUs and vector processing to analyze sequencing results.
Its a highly specialized supercomputer that uses gallium arsenide CPUs and vector processing to analyze sequencing results.
The only silicon and gallium arsenide at this spot is in the ground.
To achieve this acceleration, the LPS contains a state-of-the-art molecular beam epitaxy (MBE) facility to develop miniature lasers, optical amplifiers, and other components made out of gallium arsenide.
That is the miniature gallium arsenide photon detector, acting as a retina, and the surrounding banded area-sort of like a radial tire-is bioluminescent, and lights the area ahead.