n. [ Cf. F. imperforation. ] The state of being without perforation. [ 1913 Webster ]
n. [ Cf. F. perforation. ] 1. The act of perforating, or of boring or piercing through. Bacon. [ 1913 Webster ]
2. A hole made by boring or piercing; an aperture. “Slender perforations.” Sir T. Browne. [ 1913 Webster ]