from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A tiny puncture made by or as if by a pin.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small hole, of a size that could have been made by a pin

from The Century Dictionary and Cyclopedia

  • n. A small hole made by the puncture or perforation of a pin; hence, any very small aperture.
  • n. A minute perforation or transparency, as if made with the point of a pin, of which great numbers sometimes appear in the film of a photographic negative from some chemical defect or fault in manipulation.
  • n. In archery, the exact center of the target. Hits in the gold are measured by their distance from the pinhole. Compare pin, n., 2 .

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a small puncture that might have been made by a pin


Sorry, no etymologies found.


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  • Now lets call pinhole model as camera coordinates system.

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  • This week, it's instructions for building a simple device that will let you spot hidden "pinhole" video cameras:

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  • It looks like the center's a bit lighter than the edges, almost like a vignette or some kind of pinhole effect.

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