* Gray: This is the most common and general term.
* Steel Gray: This describes a horse with a bluish-gray coat.
* Dappled Gray: This term is used for a gray horse with darker spots or patches of color, often caused by the fading of a darker coat.
* Roan: While technically not gray, roan horses have a mixture of white hairs with either bay, chestnut, or black hairs, often giving them a grayish appearance.
Ultimately, the specific term used for a grayish horse would depend on its specific shade and any other markings it may have.