The term 'Mortise-Joint Component' refers to a type of joint used in carpentry and joinery. It is composed of two parts, the TENON and the mortise. The TENON is a projecting piece of wood that fits into a mortise, which is a cavity cut into another piece of wood. The two pieces are then secured together with glue, nails, or dowels. The mortise-joint component is a strong and durable joint that is often used in furniture making and other woodworking projects.