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Pinhole

//ˈpɪnˌhoʊl// noun, verb

Definitions

Noun
  1. 1
    A small hole, of a size that could have been made by a pin
  2. 2
    a small puncture that might have been made by a pin wordnet
  3. 3
    The aperture in a pinhole camera or camera obscura

    "These [the eyes of the nautilus] are the simplest eyes of any large living animal -- lensless 'pinholes' that project a hazy and rather dim image onto its retinas."

  4. 4
    A port left unprotected by a firewall to allow a particular application to gain access to a service.
  5. 5
    A clipping of pinhole eye, which refers to the compact eye structure associated with intense tropical cyclones.
Verb
  1. 1
    To form one or more pinholes in. transitive

Etymology

Etymology 1

From pin + hole.

Etymology 2

From pin + hole.

See also for "pinhole"

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