perforation
per.fo.ra.tion \.p*r-f*-'ra--sh*n\ n 1: the act or process of perforating 2a: a hole or pattern made by or as if by piercing or boring 2b: one of the series of holes made between rows of postage stamps in a she et
per.fo.ra.tion \.p*r-f*-'ra--sh*n\ n 1: the act or process of perforating 2a: a hole or pattern made by or as if by piercing or boring 2b: one of the series of holes made between rows of postage stamps in a she et