معنی کلمه : perforation
English
A hole made by boring or piercing; an aperture.
The act of perforating, or of boring or piercing through.
A small wheel formerly fixed to the pan of firelocks for discharging them. Crabb.

A hole made by boring or piercing; an aperture.
The act of perforating, or of boring or piercing through.
A small wheel formerly fixed to the pan of firelocks for discharging them. Crabb.