
1) Carpentry connection
Found on
https://www.crosswordclues.com/clue/dovetail-joint

A dovetail joint or simply dovetail is a joint technique most commonly used in woodworking joinery (carpentry) including furniture, cabinets, log buildings and traditional timber framing. Noted for its resistance to being pulled apart (tensile strength), the dovetail joint is commonly used to join the sides of a drawer to the front. A series of pi...
Found on
http://en.wikipedia.org/wiki/Dovetail_joint

(from the article `joint`) ...most machine-made joints follow the traditional patterns; most joints rely to a considerable extent on a combination of mechanical fit and glue ... ...of the trade of furniture making came from the increasing market demand provided by the growing affluence of the 17th and 18th centuries. In the ... If ve...
Found on
http://www.britannica.com/eb/a-z/d/71

Common interlocking joint noted for it's resistance to pulling apart; typically used on drawer sides.
Found on
http://www.furniturecaretips.com/glossary.htm
No exact match found.