\Gal"li*um\, n. [NL., fr. L. Gallia France.] (Chem.)
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? F., 30?C). Symbol
Ga. Atomic weight 69.9.
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.

\Gal"li*um\, n. [NL.; perh. fr. L. Gallia France.]
(Chem.)
A rare metallic element, found combined in certain zinc ores.
It is white, hard, and malleable, resembling aluminium, and
remarkable for its low melting point (86[deg] F., 30[deg]
C.). Symbol, Ga; at. wt., 69.9. Gallium is chiefly trivalent,
resembling aluminium and indium. It was predicted with most
of its properties, under the name eka-aluminium, by
Mendelyeev on the basis of the periodic law. This prediction
was verified in its discovery (in 1875) by its characteristic
spectrum (two violet lines).