Aperture (disambiguation)

Last updated May 13, 2025

The aperture of an optical system is the opening that limits the amount of light that can pass through.

Science and technology

In anatomy, a number of apertures in the human body:
- Apertura nasalis posterior
- Apertura pelvis inferior
- Apertura pelvis minoris
- Apertura pelvis superior
- Apertura thoracis inferior
- Apertura thoracis superior
- Lateral aperture (foramen of Luschka), an opening in each lateral extremity of the lateral recess of the fourth ventricle of the human brain
- Median aperture (foramen of Magendie), which drains cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna magna
Antenna aperture, a physical parameter of an antenna
Aperture (mollusc), the main opening in the shell of a gastropod or scaphopod (mollusc)
Aperture (botany), a weaker spot in the wall of a pollen grain
Numerical aperture is a parameter used to describe optical systems
Aperture (computer memory), a region of the physical address space that opens access to a particular device or memory unit
Aperture (software), an image organization and editing program for photographers, sold by Apple Inc.

Aperture (magazine), a long-running art photography magazine
Aperture (typography), an opening in a partially enclosed loop in a typographical symbol, such as the opening to the right in the letter 'C' or at the top of the letter 'U'
Aperture Foundation, a photography nonprofit
Aperture Science, a fictional organization featured in the Portal (series) of video games
Aperture Peak
The Aperture, a restaurant in Cincinnati, Ohio