Usually means: Tiny aperture limiting light passage.
Definitions Related words Phrases Mentions History Colors (New!)
We found 28 dictionaries that define the word pinhole:

General (22 matching dictionaries)
  1. pinhole: Longman Dictionary of Contemporary English
  2. pinhole: Merriam-Webster
  3. pinhole: Oxford Learner's Dictionaries
  4. pinhole: American Heritage Dictionary of the English Language
  5. pinhole: Collins English Dictionary
  6. pinhole: Vocabulary.com
  7. Pinhole, pinhole: Wordnik
  8. pinhole: Cambridge Advanced Learner's Dictionary
  9. pinhole: Wiktionary
  10. pinhole: Webster's New World College Dictionary, 4th Ed.
  11. pinhole: The Wordsmyth English Dictionary-Thesaurus
  12. pinhole: Infoplease Dictionary
  13. pinhole: Dictionary.com
  14. pinhole: Cambridge Essential American English Dictionary
  15. Pinhole (disambiguation), Pinhole (optics), Pinhole: Wikipedia, the Free Encyclopedia
  16. pinhole: Rhymezone
  17. pinhole: Webster's 1828 Dictionary
  18. pinhole: FreeDictionary.org
  19. pinhole: Mnemonic Dictionary
  20. pinhole: TheFreeDictionary.com

Business (1 matching dictionary)
  1. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)
  1. pinhole: Encyclopedia

Slang (1 matching dictionary)
  1. pinhole: Urban Dictionary

Tech (3 matching dictionaries)
  1. AUTOMOTIVE TERMS (No longer online)
  2. Glossary of Composite Terms (No longer online)
  3. Pinhole: Glossary of Insulator Terms

(Note: See pinholes as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
noun:  A small hole, of a size that could have been made by a pin
noun:  The aperture in a pinhole camera or camera obscura
noun:  (networking) A port left unprotected by a firewall to allow a particular application to gain access to a service.
noun:  (meteorology) A clipping of pinhole eye, which refers to the compact eye structure associated with intense tropical cyclones.
verb:  (transitive) To form one or more pinholes in.

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