Football The back on an offensive team who lines up farthest from the line of scrimmage.(noun)
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.
Use "tailback" in a sentence
"With good depth, experience and talent, the only question at tailback is who's going to start?"
"The junior tailback is eligible to enter the NFL draft after this season and he'd likely be a first-round pick."
"The junior tailback is now the fourth running back in school history with two 200-yard performances in a season."