the party member who directs the activities of the minority party on the floor of a legislative body, as of the U.S. Congress.
Origin of minority leader
An Americanism dating back to 1945–50
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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.