per·​fo·​ra·​tion | \ ˌpər-fə-ˈrā-shən How to pronounce perforation (audio) \

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


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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 Except for glass portals at the two main entrances, one facing the plaza and one on Terry Francois Boulevard facing the bay, the arena is sheathed in bands of white aluminum with syncopated perforations. John King,, "A bit of a jumble, the Warriors’ Chase Center still scores for the fans," 21 Oct. 2019 Sherels underwent surgery for bleeding near his large intestine and later had his small intestine and part of his colon removed because of a gastrointestinal perforation. San Diego Union-Tribune, "Ex-Minnesota Gophers coach reaches $1M deal with hospital," 19 Sep. 2019 In a worst-case scenario, Fertel says a particularly sharp piece of metal could cause a perforation, or cut a hole, into a vital organ like the esophagus or intestines. Adrianna Rodriguez, USA TODAY, "What's the worst that can happen if I eat recalled chicken?," 9 Nov. 2019 In VistaVision, each frame was eight perfs (perforations) wide, and the frames were side by side. David Canfield,, "The editor of the original Star Wars reflects on the making of a revolutionary film," 4 Nov. 2019 Launched in 2011, the Keane Group has more than 2,800 employees that provide hydraulic fracturing services for horizontal and vertical wells in addition to wireline, perforation, logging, engineering and cementing services. Sergio Chapa, Houston Chronicle, "Stockholders approve merger of two Houston oil field service companies," 23 Oct. 2019 The mattress, my only furniture, was held together with electrical tape, which covered the perforations made by syringes and corkscrews and smoldering cigarettes that often fell into bed with me. Colton Wooten, The New Yorker, "My Years in the Florida Shuffle of Drug Addiction," 14 Oct. 2019 The cause of death was upper gastrointestinal bleeding due to duodenal ulcer, complicated with perforation . ., "London teen lost at Malaysian resort died from ulcer bleed," 15 Aug. 2019 These include kidney damage from sodium-phosphate laxatives, a perforation during the procedure, a reaction to the sedative and bleeding if a polyp is removed. Julie Washington,, "Newer guidelines call for colonoscopies 5 years earlier, many insurances cover costs," 28 July 2019

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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Time Traveler for perforation

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

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Statistics for perforation

Last Updated

9 Dec 2019

Cite this Entry

“Perforation.” The Dictionary, Merriam-Webster Inc., Accessed 14 December 2019.

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More Definitions for perforation


How to pronounce perforation (audio)

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 How to pronounce perforation (audio) \

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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