Perforation
Pronunciation : Per`fo*ra"tion
Part of Speech : n.
Etymology : [Cf. F. perforation.]
Definition : 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.
Source : Webster's Unabridged Dictionary, 1913