What does the term "ermine" describe in horse markings?

The term "ermine" specifically refers to black spots that can appear within a white marking on a horse. This marking can be seen on the face, legs, or other areas where white markings occur. The presence of these black spots adds a distinguishing characteristic to the marking, which is often noted in breed standards and conformation assessments.

The reason for the distinction in this term is that it highlights a unique and specific quality of markings that sets it apart from general white markings or other forms of coloration. The other options do not accurately define "ermine," as they focus on different aspects of horse markings or lack the specific detail that "ermine" entails. Understanding these specific terms enhances overall knowledge of equine conformation and breed characteristics, which is essential for those involved in horse care, breeding, and competition.