The hybrid offspring of a male horse and a female donkey.(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.
Use "hinny" in a sentence
"I knew nothing about that horse except that a hinny was the sterile issue of stallion and jenny, most like a mule but prettier, yet already I was eager to ride her."
"A hinny is the offspring of a stallion and a she - donkey."
"On the other hand, the hinny, which is the offspring of the stallion and the she-ass, is essentially a modified horse, having the general configuration of the horse, but being a much smaller animal than its sire, and therefore approaching the dam in size as well as in the comparative narrowness of its trunk."