"perforation" in the noun sense
a line of small holes for tearing at a particular place
a hole made in something
"a perforation of the eardrum"
the act of punching a hole (especially a row of holes as for ease of separation)
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License