perforation
1. [ noun ] a line of small holes for tearing at a particular place
Related terms: hole punch
2. [ noun ] a hole made in something
Examples:

"a perforation of the eardrum"

Related terms: hole
3. [ noun ] one of a series of small holes (especially such a series for separating a sheet into parts)
Related terms: hole penetrate
4. [ noun ] the act of punching a hole (especially a row of holes as for ease of separation)
Related terms: puncture punch
Similar spelling:   perforate
  perforated
  performer
  performing
  performance
  perforce