Noun
The act of perforating, or of boring or piercing through.
A hole made by boring or piercing; an aperture.
Source: Webster's dictionarya perforation of the eardrum Source: Internet
16 mm black and white reversal Silent Home Movie on double perforation film stock Production evolution The silent 16 mm format was initially aimed at the home enthusiast, but by the 1930s it had begun to make inroads into the educational market. Source: Internet
A cemented steel case was constructed in the hole with a perforation at the bottom close to the magma. Source: Internet
“And then she waited probably another week’s time and ended up here with a really significant complication with a bad wound infection and perforation, a hole in her intestines, requiring additional surgeries.” Source: Internet
An abnormal variety of stamps occurring because of paper fold, over-inking, perforation shift, etc., as opposed to a continually appearing variety or a major error. Source: Internet
Buyers have a choice of nine color and trim choices, four perforation and quilting patterns for the upholstery, and seven wood trims. Source: Internet