Definition of "iron horse" []

• Informal A railroad locomotive. (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.

• "My iron horse and carriage, the Bronx-bound D train, would get me there, and the only difference at this party was that 50,000 people hoped the Los Angeles Angels would turn into pumpkins at midnight."
• ""Travel by doherty wagon had advantages, like game en route, but I think I prefer the iron horse now."