There are 2 main definitions of palladium in English:

palladium1

Line breaks: pal|la¦dium
Pronunciation: /pəˈleɪdɪəm
 
/

noun

[mass noun]
The chemical element of atomic number 46, a rare silvery-white metal resembling platinum. (Symbol: Pd)
More example sentences
  • To this group belong the important steel alloying elements nickel and manganese, as well as cobalt and the inert metals ruthenium, rhodium, palladium, osmium, iridium and platinum.
  • These metals include platinum, palladium, and rhodium.
  • You can, with Kallitype, start with a noble metal, silver, which can be toned with the more noble metals gold, palladium and platinum, and through double or triple toning produce prints with split tones.

Origin

early 19th century: modern Latin, from Pallas, the name given to an asteroid discovered just before the element (see Pallas).

Definition of palladium in:

There are 2 main definitions of palladium in English:

palladium2

Line breaks: pal|la¦dium
Pronunciation: /pəˈleɪdɪəm
 
/

noun (plural palladia /-dɪə/)

archaic
A safeguard or source of protection: he regarded himself as the palladium of the American cause
More example sentences
  • The philosophy of Descartes established this principle, which is the palladium of science; and thus the third preliminary condition was fulfilled.
  • The icon of the Virgin of Vladimir acts in a similar way as a palladium of the Russian Church and state.
  • Vixum is best remembered for installing the Phra Bang as the palladium (protector) of the Lan xang kings.

Origin

late Middle English (in the Greek sense): via Latin from Greek palladion, denoting an image of the goddess Pallas (Athene), on which the safety of Troy was believed to depend.

Definition of palladium in: