Pd

Multiple Entries:
  Pd    PD    pd    palladium  

Concise Oxford English Dictionary © 2008 Oxford University Press:
Pd

▶symbol the chemical element palladium.

Concise Oxford English Dictionary © 2008 Oxford University Press:
PD

▶abbreviation

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Concise Oxford English Dictionary © 2008 Oxford University Press:
pd

▶abbreviation paid.

Concise Oxford English Dictionary © 2008 Oxford University Press:
palladium1 /pəˈleɪdɪəm/

▶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.

Concise Oxford English Dictionary © 2008 Oxford University Press:
palladium2 /pəˈleɪdɪəm/

▶noun (pl. 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.