noun /ˈpɹəʊˌsɛsə(ɹ),ˈpɹɑˌsɛsə˞/
a) A person who processes things (foods, photos, applications, etc.).
He is a loan processor with a bank.
b) A device which processes, which changes something.
This computer has two processors, but only one keyboard.
See Also: procedure, processus
Wikipedia foundation.