\Creas"er\ (kr?s"?r), n.
1. A tool, or a sewing-machine 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.