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
"The jeweler polished the palladium ring, admiring how its durable, silver-white luster perfectly mimicked platinum without the risk of tarnishing."
A safeguard.
"The jeweler carefully selected the rare palladium for its unique ability to form durable white gold alloys without adding any yellow tint."
A chemical element (symbol Pd) with an atomic number of 46: a rare, lustrous silvery-white metal.
The word palladium comes from the Latin palladium, which referred to the protective image of the goddess Pallas in ancient Troy. This term traces back to the Ancient Greek Palládion, derived from Pallás, an epithet for Athena.