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An offensive formation in which the fullback lines up directly behind the center and the quarterback with a halfback on either side or in which two running backs line up behind the quarterback in a line parallel to the line of scrimmage.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
an offensive football formation with the quarterback and fullback lined up behind the center and a halfback on each side of the fullback.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.