1. a hole made by boring or piercing; an aperture passing through or into something: "the perforations allow water to enter the well"
▪ a small hole or row of small holes punched in a sheet of paper, e.g. of postage stamps, so that a part can be torn off easily: "memos are produced in a continuous strip divided by perforations so that the forms can be detached"
▪ the action or state of perforating or being perforated:"there was evidence of intestinal perforation"
Word Originlate Middle English: from medieval Latin perforatio(n-), from the verb perforare (see perforate).
