palladium
英 [p?'le?d??m]
美[p?'led??m]
- n. [化學(xué)] 鈀；守護(hù)神
英英釋意
- 1. a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry