iris recognition

Main Entry:  iris recognition
Part of Speech:  n
Definition:  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
Example:  Iris recognition combines computer vision, pattern recognition, statistics, and the human-machine interface.
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Iris recognition is always a great word to know.
So is callithumpian. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
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