Dictionary

pinhole en · NOUN

Pronunciation

• /ˈpɪnˌhoʊl/ (General-American)

Etymology

From pin + hole.

Meanings

1. A small hole, of a size that could have been made by a pin
2. 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. 2012, Caspar Henderson, The Book of Barely Imagined Beings, page 216:
3. A port left unprotected by a firewall to allow a particular application to gain access to a service.
4. A clipping of pinhole eye, which refers to the compact eye structure associated with intense tropical cyclones.

Forms

Deriveds

pinhole grass · pinhole pupil · pinhole detector · pinhole camera · pinhole chert · pinhole glasses

pinhole en · VERB

Pronunciation

• /ˈpɪnˌhoʊl/ (General-American)

Etymology

From pin + hole.

Meanings

1. (transitive) To form one or more pinholes in.

Forms