perforation
🇺🇸
/ˌpɜːrfəˈreɪʃn/
🇬🇧
/ˌpɜːfəˈreɪʃn/
A tiny hole made in something, often part of a pattern of holes.
The new stamps had neat perforations along the edges for easy separation.
When something is torn or split, leaving a hole.
The perforation of the eardrum can be caused by a sudden, loud noise.