Aperture (disambiguation)

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

Aperture may also refer to:

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" (song), a song by Emily Blue
Aperture (typography), an enclosed loop in a typographical symbol, such as the lower part of the letter 'a'
Aperture Foundation, a photography nonprofit
Aperture Science, a fictional organization featured in the Portal video game series

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