pinhole

noun

pin·​hole ˈpin-ˌhōl How to pronounce pinhole (audio)
: a small hole made by, for, or as if by a pin

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One day while driving, my vision began to shrink, like the end of a movie when the camera reduces to a pinhole. Lisa K. Friedman, PEOPLE, 27 Sep. 2025 Locate the reset button (usually a small pinhole on the back). Roxanne Downer, USA Today, 23 Sep. 2025 The system revives the centuries-old concept of pinhole imaging. Aamir Khollam, Interesting Engineering, 19 Sep. 2025 Aceclidine, a pupil-selective miotic, works without significantly stimulating the focusing (ciliary) muscle, creating a pinhole effect – which improves near vision without adverse outcomes seen in Vuity. New Atlas, 6 Aug. 2025 See All Example Sentences for pinhole

Word History

First Known Use

1612, in the meaning defined above

Time Traveler
The first known use of pinhole was in 1612

Browse Nearby Words

Cite this Entry

“Pinhole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pinhole. Accessed 8 Oct. 2025.

Kids Definition

pinhole

noun
pin·​hole -ˌhōl How to pronounce pinhole (audio)
: a very small hole made by or as if by a pin
Last Updated: - Updated example sentences
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