GALLIUM

gallium, Ga, atomic number

(noun) 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

Source: WordNet® 3.1

Etymology

Noun

gallium (uncountable)

A chemical element (symbol Ga) with an atomic number of 31; a soft bluish metal.

Synonym: eka-aluminium (name given by Dmitri Mendeleev to the then undiscovered element at the position of gallium in his periodic table)

Source: Wiktionary

Gal"li*um, n. Etym: [NL., fr. L. Gallia France.] (Chem.)

Definition: A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarcable for its low melting point (86

Note: The element was predicted with most of its properties, under the name ekaluminium, by the Russian chemist Mendelejeff, on the basis of the Periodic law. This prediction was verified in its discovery by the French chemist Lecoq de Boisbaudran by its characteristic spectrum (two violet lines), in an examination of a zinc blende from the Pyrenees.

Source: Webster’s Unabridged Dictionary 1913 Edition

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