a silver-white, malleable, ductile, metallic chemical element occurring as a sulfide or carbonate in zinc ores: it is used in some low-melting alloys, electroplating, rechargeable batteries, etc.: highly toxic dust or fumes: symbol, Cd; at. no. 48
Origin of cadmiumModern Latin ; from Classical Latin cadmia, zinc ore ; from Classical Greek kadmeia(g?), Cadmean (earth) (so called because found near Thebes, home of Cadmus) + -ium: so named (1817) by F. Strohmeyer (1776-1835), German chemist, because frequently found associated, association with zinc
A soft, bluish-white metallic element occurring primarily in zinc, copper, and lead ores, that is easily cut with a knife and is used in nickel-cadmium storage batteries, rustproof electroplating, nuclear reactor shields, solders, and in low-friction, fatigue-resistant alloys. Atomic number 48; atomic weight 112.41; melting point 321.1°C; boiling point 767°C; specific gravity 8.65; valence 2. See Periodic Table.
Origin of cadmiumLatin cadm&imacron;a, calamine (the ore of zinc from which cadmium was first extracted as an impurity) (from Greek kadmeia (g&emacron;), Theban (earth), from Kadmos, Cadmus; see Cadmus) + –ium.
- A metallic chemical element (symbol Cd) with an atomic number of 48.
From Greek Καδμεία (calamine), a Cadmium-bearing mixture of minerals, which was named after the god, Κάδμος (Cadmus)