perforation
英 [,pɜːfə'reɪʃn]
美[,pɝfə'reʃən]
英英释意
- 1. a line of small holes for tearing at a particular place
- 2. a hole made in something;
- "a perforation of the eardrum"
- 3. the act of punching a hole (especially a row of holes as for ease of separation)