Double Coat: An outer coat resistant to weather and protective against brush and brambles, together with an undercoat of softer hair for warmth and waterproofing. A dog with this type of coat can also be referred to as a double coat.

Double Dapple: Varying amounts of white coloring occurring over the body in addition to the dapple pattern. Color definitions may vary by breed. Always check the breed standard for the definitive color description.

Down-Faced: The muzzle inclining downwards from the skull to the tip of the nose.

Down Hairs: A term referring to the shortest hair on the dog, which is usually found next to the skin beneath the top coat and is soft and downy in texture.

Drag: A trail prepared by dragging along the ground a bag impregnated (usually) with animal scent.

Drive: A solid thrusting of the hindquarters, denoting sound locomotion.

Drop Ear: The ear leather folds over; not erect or prick ears.; Ear in which the leather is folded over to some degree.

Dropper: A bird dog cross.

Dry Neck: The skin taut, neither loose nor wrinkled.

Dudley Nose: Flesh-colored.

Dutch Shepherd Dog: A large breed of dog similar to the German Shepherd Dog and originating from the Netherlands.