A serious complication of peptic ulcers where the ulcers penetrate through the stomach or duodenum allowing their contents to enter the peritoneal space
A series of small slits produced on a folder in the printed sheet, parallel to the fold at the bind edge, which permits the paper to be separated easily at these slits (perforations); also called Commercial Perforation to top
Perforations are small holes that are made in something, especially in paper. Tear off the form along the perforations and send it to Sales
a series of holes punched through something in order to assist in separating parts
A line of cuts or punches which allows paper to be torn off easily - for instance, to remove a reply card
Holes of precise dimensions/spacing that is pressed into paper for ease of separating
a series of cuts or holes manufactured on a sheet of paper to weaken it in a certain spot for easy tearing
the act of punching a hole (especially a row of holes as for ease of separation) a line of small holes for tearing at a particular place a hole made in something; "a perforation of the eardrum