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


pinhole, pinprick, prick, punch, puncture, stab

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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

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 Overscanning will also capture edge or perforation damage that can provide contextualization for the condition of the film. Chuck Thompson, Popular Mechanics, "How Archivists Saved Damaged WWII Film for 'The Cold Blue'," 23 May 2019 Then there’s perforation, when an IUD starts to migrate through the uterine walls. Jessica Shepherd, SELF, "An Ob/Gyn Explains if You Actually Need to Check Your IUD Strings," 8 Sep. 2018 Loose powder is dusted across the surface, passing through the perforations to provide outlines to guide the artist. Cammy Brothers, WSJ, "Taking Shape Before Our Eyes," 14 June 2019 Use a Solid Headboard Go for a solid headboard without perforations and make sure it's attached to the bed. Monique Valeris, ELLE Decor, "12 Feng Shui Tips to Create the Bedroom of Your Dreams," 17 May 2019 Much more rarely, people deal with the IUD complication known as perforation, which happens when an IUD pierces the uterine wall. Korin Miller, SELF, "When Is It OK to Get Your IUD Removed?," 12 Mar. 2019 IUDs can also cause perforation, which is when the device pushes through the wall of your uterus. Korin Miller, SELF, "13 Things You Absolutely Should Know Before Getting the Copper IUD," 20 July 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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Statistics for perforation

Last Updated

19 Aug 2019

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Time Traveler for perforation

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

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More Definitions for perforation



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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Comments on perforation

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recurring in steady succession

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