a small hole made by or as by a pin.
a hole for a pin to go through; tiny aperture.

Origin of pinhole

First recorded in 1670–80; pin + hole Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pinhole

Contemporary Examples of pinhole

  • Example: "Sam, you have no idea how big this thing was…It was like putting like a watermelon into a pinhole."

    The Daily Beast logo
    The Real Jersey Dictionary, Vol. 2

    Jaimie Etkin

    October 21, 2010

Historical Examples of pinhole

  • Well, I will get a picture with my pinhole camera even if I have no lens.

    The Hilltop Boys

    Cyril Burleigh

  • Beware of making so much as a pinhole in the dam that holds back their knowledge.

    Over the Teacups

    Oliver Wendell Holmes, Sr.

  • Turn for a moment to Fig. 106, which shows a "pinhole" camera in section.

    How it Works

    Archibald Williams

  • No, shes all rightnot even a pinhole in her, said Mr.Bobbsey.

  • It is the pure light that plays tricks, and it will play them through a pinhole.

British Dictionary definitions for pinhole



a small hole made with or as if with a pin
archery the exact centre of an archery target, in the middle of the gold zone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012