Definify.com
Webster 1913 Edition
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.
Webster 1828 Edition
Perforation
PERFORA'TION
,Noun.
1.
A hole or aperture passing through any thing, or into the interior of a substance, whether natural or made by an instrument.