One who takes a position in the political center; a moderate.
Marked by or adhering to a moderate political view: "The deep pool of centrist opinion in the country, that essential guarantee against violent political upheavals, is being dangerously shaken” ( New York Times).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.