'Bargainer' definitions:

Definition of 'bargainer'

From: WordNet
noun
Someone who purchases and maintains an inventory of goods to be sold [syn: trader, bargainer, dealer, monger]
noun
Negotiator of the terms of a transaction; "he is a hard bargainer"

Definition of 'Bargainer'

From: GCIDE
  • Bargainer \Bar"gain*er\, n. One who makes a bargain; -- sometimes in the sense of bargainor. [1913 Webster]