|1.||the act of perforating or the state of being perforated|
|2.||a hole or holes made in something|
|3.||a. a method of making individual stamps, coupons, etc, easily separable by punching holes along their margins|
|b. perf the holes punched in this way|
perforation per·fo·ra·tion (pûr'fə-rā'shən)
The act of perforating or the state of being perforated.
An abnormal opening in a hollow organ or viscus, as one made by rupture or injury.