n.
An adult male horse that has not been castrated, especially one kept for breeding.
[Middle English stalione (alteration of staloun), from Anglo-Norman estaloun, of Germanic origin.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
