pin·hole | \ˈpin-ˌhōl \

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

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 The camera that caught Alzahab’s eye is indeed a curiosity: 30 pounds of copper, titanium, steel, gold and other metals welded together into a box that makes pictures by admitting only a pinhole of light. Wayne Martin Belger, Smithsonian, "Pushed to the Margins, These Brave People Are Pushing Back," 27 June 2018 At one point renamed the Georgia Mae, the boat developed pinholes in its hull from tiny fires sparked by faulty wiring. Rick Montgomery, kansascity, "Tornado sunk this Kansas cruise boat in 1978, killing 16. Owners hope it floats again.," 22 June 2018 In 2013, a resident of Alberta, Canada — several hundred miles south of Fairbanks but still in a high latitude — took this pinhole camera photograph of the sun’s path throughout the year, and shared it with the astronomy website EarthSky. Brian Resnick, Vox, "The summer solstice is Thursday: 6 things to know about the longest day of the year," 19 June 2018 Figures are airtight yet textureless, with eyes like pinholes. New York Times, "Can You Illustrate Emotional Absence? These Graphic Novels Do," 31 May 2018 Officers found pinhole cameras that recorded unsuspecting customers’ typing their PIN numbers. Alana Levene,, "Brazilian couple charged for skimming people’s cards at Boston-area ATMs," 20 Apr. 2018 Police said small plastic pieces that have a pinhole near the keypad could be a camera. Deborah Kadin,, "Police investigate after card skimming device found on ATM at Northlake Walgreens," 8 Mar. 2018 An instrusive moisture meter is more effective, but will leave two pinholes in your wood. Diane Cowen, Houston Chronicle, "7 tips for addressing mold abatement, inspection in flood-damaged homes," 19 Feb. 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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Time Traveler for pinhole

The first known use of pinhole was in 1612

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English Language Learners Definition of pinhole

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

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Comments on pinhole

What made you want to look up pinhole? Please tell us where you read or heard it (including the quote, if possible).


one that holds something together

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