Pinhole

n. hole made by a pin; hole for a pin or nail

A pinhole is a small hole in the surface or interior of a material.Pinhole, a rock band from Liverpool, England, later to become The Dead 60s.A pinhole camera, a camera that uses a pinhole to form an image instead of a lens. See also Camera Obscura.In computer networking, the term Firewall pinhole is used to describe a port that is opened through a firewall to allow a particular application to gain controlled access to the protected network.
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Noun
1. a small puncture that might have been made by a pin
(hypernym) puncture

a small undesired hole in a photoresist film, deposited or grown film or opaque area on a photomask.

n.
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