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Noun: aperture  a-pu(r)-chu(r)
  1. A variable-sized hole that controls the amount of light admitted to a camera
  2. A natural opening in something
  3. A man-made opening; usually small

Derived forms: apertures

Type of: hole, opening, regulator

Part of: camera, eye, oculus, optic, photographic camera, scope, telescope

Encyclopedia: Aperture, magazine