The term 'Parts of Dovetail Joints' refers to the two components that make up a dovetail joint. The first part is the tenon, which is a protruding piece of wood that fits into a mortise, or a hole cut into another piece of wood. The tenon is usually tapered on the end to ensure a snug fit. The second part is the mortise, which is the hole cut into the other piece of wood to accept the tenon. Together, the tenon and mortise form a strong joint that is often used in furniture making and carpentry.