~ 1 [ pə'leɪdɪəm ]
■ noun the chemical element of atomic number 46, a rare silvery-white metal resembling platinum. (Symbol: Pd )
Origin
C19: mod. L., from Pallas , an asteroid discovered (1803) just before the element.
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~ 2 [ pə'leɪdɪəm ]
■ noun ( plural palladia -dɪə ) archaic a safeguard or source of protection.
Origin
ME: via L. from Gk palladion , denoting an image of the goddess Pallas (Athene), on which the safety of Troy was believed to depend.