pin·​hole | \ ˈpin-ˌhōl How to pronounce pinhole (audio) \

Definition of pinhole

: a small hole made by, for, or as if by a pin

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Examples of pinhole in a Sentence

The water was leaking through a pinhole in the pipe. pinholes in a bedsheet will look like stars if you shine a light from behind it

Recent Examples on the Web

Microneedling improves the color and appearance of stretch marks by creating tiny pinhole injuries in the stretch mark itself. April Franzino, Good Housekeeping, "What Is Microneedling — and Is It Safe?," 29 July 2019 On the front, that Infinity-O pinhole holds a 10-megapixel autofocus lens with an 80-degree viewing angle. Jacob Krol, CNN Underscored, "First look at the Samsung Galaxy Note 10 & 10+: Why they're worth preordering," 8 Aug. 2019 Step 2: Make the Burner Holes Using the knife on your multitool or an awl, make a series of pinholes around the upper rim of the stove and one larger one right in the middle of the top. Outside Online, "5 Ways to Impress Your Friends at the Campsite," 25 July 2019 Students will work on projects, such as creating pinhole cameras for use by people with limited mobility and learning how to seismically test buildings. Andrew J. Campa, Burbank Leader, "St. John Paul II STEM Academy to separate female and male students to encourage them in certain classes," 23 July 2019 In 2013, a resident of Alberta, Canada, took this pinhole camera photograph of the sun’s path throughout the year and shared it with the astronomy website EarthSky. Brian Resnick, Vox, "Earth’s seasons, explained in one GIF," 21 June 2019 The two compartments would be separated by a wall with a shutter covering a pinhole just large enough for a gas molecule to pass through. Jennifer Ouellette, Ars Technica, "Penn State scientists build quantum version of Maxwell’s demon," 12 Sep. 2018 The window was acting as a pinhole camera — the simplest kind of camera, in which light rays pass through a small opening and form an inverted image on the other side. Quanta Magazine, "The New Science of Seeing Around Corners," 30 Aug. 2018 Fermilab spokeswoman Deb Sebastian said a 400-gallon tank with sulfuric acid for water treatment sprang a pinhole-sized leak Monday around 2:30 p.m. Megan Jones, Aurora Beacon-News, "No injuries reported after acid leak at Fermilab in Batavia," 10 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pinhole.' 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 pinhole

1612, in the meaning defined above

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Statistics for pinhole

Last Updated

7 Sep 2019

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Time Traveler for pinhole

The first known use of pinhole was in 1612

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More Definitions for pinhole



English Language Learners Definition of pinhole

: a very small hole made by a pin or in some other way

More from Merriam-Webster on pinhole

Rhyming Dictionary: Words that rhyme with pinhole

Thesaurus: All synonyms and antonyms for pinhole

Britannica English: Translation of pinhole for Arabic Speakers

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