the GNU version of the Collaborative International Dictionary of English
n. One who negotiates; a person who treats with others, either as principal or agent, in respect to purchase and sale, or public or private compacts.
The Century Dictionary and Cyclopedia
n. One who negotiates; one who treats with others as either principal or agent in commercial transactions, or in the making of national treaties or compacts.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. someone who negotiates (confers with others in order to reach a settlement)
Word Usage
"But setting O'Neill up as chief negotiator is asking for trouble."