- a locomotive.
Origin of iron horse
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for iron horse
They had no time to repair or refit, for an iron-horse of more bottom was close behind.Daring and Suffering:
- archaic a steam-driven railway locomotive
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012