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Dictionary

gal•li•um

Pronunciation: (gal'ē-um), [key]
—n. Chem.
a rare, steel-gray, trivalent metallic element used in high-temperature thermometers because of its high boiling point (1983°C) and low melting point (30°C). Symbol: Ga; at. wt.: 69.72; at. no.: 31; sp. gr.: 5.91 at 20°C.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

gallipot

gallium arsenide

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