'Payer' definitions:

Definition of 'payer'

(from WordNet)
noun
A person who pays money for something [syn: payer, remunerator]

Definition of 'Payer'

From: GCIDE
  • Payer \Pay"er\, n. One who pays; specifically, the person by whom a bill or note has been, or should be, paid. [1913 Webster]