McGwire Mark David
Mc·Gwire(mə-gwīr′), Mark David Born 1963.
American baseball player. In 1987 he set the single-season record for home runs hit by a rookie (49), and in 1998 he set a record for home runs hit in one season (70), which stood for three years.
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.