Coating Chestnut is a term used to describe a type of HORSE coat color. The coat is a combination of chestnut, which is a reddish-brown color, and white hairs that create a dappled effect. The three crossword solutions for this term are BUR (3 letters), ROAN (4 letters), and HORSE (5 letters). BUR is an abbreviation for bay roan, which is a reddish-brown color with white hairs. ROAN is a type of coat color that is a mixture of white and any other color. HORSE is the animal that typically has this type of coat color.