Examples from the Web for perforation
Most of these cases were examples of perforation of gastric ulcer.
The convenience of perforation was adopted at the same time.Gambia|Frederick John Melville
If the food is recognised as being satisfactory the egg is laid; if not, the perforation is abandoned without more ado.Social Life in the Insect World|J. H. Fabre
The perforation is neatly made and of uniform diameter throughout.
The perforation is extremely large, and is conical, having been bored entirely from one side.
British Dictionary definitions for perforation
- a method of making individual stamps, coupons, etc, easily separable by punching holes along their margins
- the holes punched in this wayAbbreviation: perf
Word Origin and History for perforation
early 15c., "hole made through something;" mid-15c., "action of perforating," from Middle French perforation or directly from Late Latin perforationem (nominative perforatio), noun of action from past participle stem of Latin perforare "bore or pierce through," from per- "through" (see per) + forare "to pierce" (see bore (v.1)).