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Webster 1913 Edition

Cadmium

Cad′mi-um

,
Noun.
[NL. See
Cadmia
.]
(Chem.)
A comparatively rare element related to zinc, and occurring in some zinc ores. It is a white metal, both ductile and malleable. Symbol Cd. Atomic weight 111.8. It was discovered by Stromeyer in 1817, who named it from its association with zinc or zinc ore.
Cadmium yellow
,
a compound of cadmium and sulphur, of an intense yellow color, used as a pigment.

Webster 1828 Edition

Cadmium

CADMIUM

,
Noun.
A metal discovered by M. Stromeyer, in 1817, in carbonate of zink, at Hanover. Its color is a fine white, with a shade of bluish gray, resembling that of tin. Its texture is compact, its fracture hackly, and it is susceptible of polish. It is ductile and malleable, and when fused, crystalizes in octahedrons. It melts below a red heat, and suffers no change in air.

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