D.V.M.

Doctor of Veterinary Medicine

Dam

The female parent of a horse.

Dapples

A horse with a mottled or spotted skin or coat.

Destrier

A heavy, strong medieval war horse.

Dock

The point where the tail connects to the rear of the horse.

Dun

Yellowish brown with a dorsal stripe along the back and occasionally zebra stripings on the legs.