ˈplætɪnəm n. Chem. a
ductile malleable silvery-white
metallic element occurring
naturally in
nickel and copper ores,
unaffected by
simple acids and
fusible only at a
very high temperature, used in
making jewellery and
laboratory apparatus. °Symb.:
Pt. øplatinum
black platinum in
powder form like
lampblack. platinum
blonde (or blond) adj. silvery-blond. --n. a
person with silvery-blond
hair. platinum
metal any metallic element found with and resembling platinum e.g.
osmium,
iridium, and palladium. [mod.L f. earlier platina f. Sp., dimin. of plata silver]