per·​fo·​ra·​tion | \ˌpər-fə-ˈrā-shən \

Definition of perforation 

1 : the act or process of perforating

2a : a hole or pattern made by or as if by piercing or boring

b : one of the series of holes (as between rows of postage stamps) in a sheet that serve as an aid in separation

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Synonyms for perforation


aperture, hole, opening, orifice

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Examples of perforation in a Sentence

an infection that can cause perforation of the intestine absentmindedly made perforations in his paper with his pencil

Recent Examples on the Web

Apollo Endosurgery said that as of March 31, the global rate of spontaneous hyperinflation of its devices after operations was 0.07%, and the gastric perforation rate was 0.01%. Susan Scutti, CNN, "Weight loss balloons now linked to 12 deaths," 4 June 2018 Once inside the container, Bessemer blasted air through perforations on the bottom. Jonathan Schifman, Popular Mechanics, "The Entire History of Steel," 9 July 2018 Uncomplicated diverticulitis: If an attack occurs without sepsis, without free perforation or any other complication, it can usually be treated without surgery. Andrea K. Mcdaniels,, "Diverticulitis can cause digestive problems for some," 7 June 2018 The rates of esophageal perforation, pancreatitis and mortality were each less than 0.01%. Susan Scutti, CNN, "Weight loss balloons now linked to 12 deaths," 4 June 2018 The result is a culinary theater-in-the-round, starring a butter-pastry cascade of rosettes, hearts, leaves, vines, berries, braids, stars, paisley, perforations, diamonds and dots. Rebecca Powers,, "A German baker has taken pie art to a mesmerizing new level," 19 June 2018 Those symptoms may progress, however, to serious complications like esophageal perforation, vocal cord paralysis, or erosion of the airway or blood vessels. Rita Giordano,, "What to do after a child swallows a button battery? Try honey, CHOP study suggests," 11 June 2018 This study gives the physician a lot of information about the colon, and can find perforations, abscesses or obstructions. Andrea K. Mcdaniels,, "Diverticulitis can cause digestive problems for some," 7 June 2018 This week, the agency revealed that five more deaths had been reported since last year’s warning, several of which were linked to perforations of the stomach wall after balloon implantation. Amanda Macmillan,, "12 People Have Died After Trying This Popular Weight-Loss Procedure. Here's What You Should Know," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'perforation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of perforation

15th century, in the meaning defined at sense 1

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The first known use of perforation was in the 15th century

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English Language Learners Definition of perforation

: a small hole or series of small holes in paper, cardboard, etc.

medical : a hole in part of the body caused by an accident or disease


per·​fo·​ra·​tion | \ˌpər-fə-ˈrā-shən \

Medical Definition of perforation 

1 : the act or process of perforating specifically : the penetration of a body part through accident or disease spontaneous perforation of the sigmoid colon in the presence of diverticulosis Journal of the American Medical Association

2a : a rupture in a body part caused especially by accident or disease

b : a natural opening in an organ or body part

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Comments on perforation

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noxious or harmful

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