[ pin-hohl ]
See synonyms for pinhole on
  1. a small hole made by or as by a pin.

  2. 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. 2023

How to use pinhole in a sentence

  • "From the tiny tinge of fresh blood about one of the pinholes on the interior of the lining," explained Nick.

    With Links of Steel | Nicholas Carter
  • Pinholes give an image that for all practical purposes may be said to be equally blurred or "soft" over the whole plate.

  • The negative is prepared for printing as in all other processes by removing all defects such as pinholes, streaks, etc.

  • It has tiny holes, and many of them; let us say it is freckled with pinholes, rather than pock-marked.

    The Complete Book of Cheese | Robert Carlton Brown
  • These pinholes correspond to what are technically known to printers as "register marks."

British Dictionary definitions for pinhole


/ (ˈpɪnˌhəʊl) /

  1. a small hole made with or as if with a pin

  2. 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