کلماتور
A point where one branch of a curve crosses another branch. See Double point, under Double, a.
1. A tool, or a sewing-mashine attachment, for making lines or creases on leather or cloth, as guides to sew by. 2. A tool for making creases or beads, as in sheet iron, or for rounding small tubes. 3. (Bookbinding) A tool for making the band impression distinct on the back. Knight.