[ahy-ris-out] /ˈaɪ rɪsˈaʊt/
noun, Movies, Television.
the gradual disappearance of an image or scene through a contracting circle.
- Iris pit
iris pit n. A coloboma affecting the stroma of the iris with the pigment epithelium intact.
- Iris recognition
noun a type of pattern recognition of a person’s iris recorded in a database for future attempts to determine or recognize a person’s identity when the eye is viewed by a reader Examples Iris recognition combines computer vision, pattern recognition, statistics, and the human-machine interface.
- Iris scan
noun an electronic scan of the eye performed from about 10 cm to a few meters away, for identification purposes
noun 1. a camera shutter having a group of overlapping blades that open and close at the center when exposing film.