for-, fora- +
(Latin: bore, pierce, make holes)
biforate
1. Having two pores, two openings, or two perforations.
imperforate
1. Not perforated or having no opening.
2. Not separated by rows of perforations; such as, imperforate sheets of stamps.
3. In medicine, a body part lacking an opening of the normal size; especially, because of atypical development; for example, an imperforate anus.
imperforation
1. A condition in which something is abnormally closed.
2. The state of being without perforation.
perforate
1. To make a hole or holes in something.
2. To make a line of small holes in paper to make tearing it easier.
3. To penetrate or pass through something.
4. Dotted with small holes.
perforated
Having a hole or holes, especially a row of small holes.
perforating
Making a hole or holes in something.
perforation
1. The act of boring or piercing through a part.
2. A hole made through a part or substance.
3. The act of punching a hole; especially, a row of holes as for ease of separation.
4. A line of small holes for tearing at a particular place.
perforator
One who, or that which, perforates or makes holes in something.