perforation
UK /ˌpɚfəˈreɪʃən/ US /ˌpɚfəˈreɪʃən/
noun 5
Definitions
noun
1
The act of perforating or the state of being perforated.
2
Any opening in a solid object.
3
An abnormal opening in an organ, such as a rupture.
4
A series of holes punched through something in order to assist in separating parts.
5
That portion of a surface that remains after an open disk is removed from it.
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