The term 'Dovetail' when used in the context of antiques is generally used to refer to dovetails joints. Dovetail joints are joints that were introduced by the Dutch in late 17th century. They are used to connect two wood pieces. Traditional dovetail joints were hand made by skilled cabinetmakers with the help of tools such as precision saws and wood chisels. The name "dovetail" comes from the appearance of the joint. The joint resembles the triangle shape of a bird's tail and hence the name 'dovetails'.
Dovetail joints were used in the antique furniture, especially in the drawers of furniture. There are different types of dovetailed joints. They use the interlocking mechanism to joints two pieces of wood. They often serve as a clue to know the authenticity of furniture. One can easily examine the joints used in antique furniture and learn much about the age of the furniture.  The term is also seen used to refer to furniture that are created using dovetail joints.