Perforation

Perˊfo-ra′tion

,

Noun.

[Cf. F.

perforation

.]

1.

The act of perforating, or of boring or piercing through.

Bacon.

2.

A hole made by boring or piercing; an aperture.

“Slender perforations.”

Sir T. Browne.

,

Noun.

The act of boring or piercing through.

1.

A hole or aperture passing through any thing, or into the interior of a substance, whether natural or made by an instrument.

perforation ‎(plural perforations)

the act of perforating or the state of being perforated
any opening in a solid object
(medicine) an abnormal opening in an organ, such as a rupture
a series of holes punched through something in order to assist in separating parts
(mathematics) that portion of a surface that remains after an open disk is removed from it

perforation f ‎(plural perforations)