ˈkrēsə(r) noun
( -s )
: one that creases: as
a. : a tool or a sewing-machine attachment for making lines or creases on leather or cloth as guides to sew by
b. : a tool for making creases or beads (as in sheet iron)
c. : a tool for making the band impression distinct on the backbones of books or for making blind lines or creases on the cases of books