oddsmaker definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a person, usually an expert, who estimates the odds, or advantage, in betting or competing
oddsmaker definition by American Heritage Dictionary
One who calculates and sets betting odds based on the prediction of the result of a contest such as a horserace or an election.