Definition of "base runner" [base runner]

• Baseball A member of the team at bat who has safely reached or is trying to reach a base. (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.

• "CUTOFF MAN: infielder who catches a throw from an outfielder in an attempt to hold up a base runner who is heading for a base or home plate or to get a ball to its intended target faster."