pd

Noun

WORDNET DICTIONARY

pd(n = noun.substance) atomic number 46, palladium - 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; Array

is a kind of metal, metallic element

pd, prop. n.

The chemical symbol for palladium, an element of the platinum group of atomic number 46. [WordNet 1.5]

pd, abbr. US Police Department.

pd, symb. Chem. the element palladium.