Ps vs. Pd
Psnoun
post scriptum.
Psnoun
a note appended to a letter after the signature
Pd
The chemical symbol for palladium, an element of the platinum group of atomic number 46.
Pdnoun
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
