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Related to iris scanning: retinal scanning
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|Noun||1.||iris scanning - biometric identification by scanning the iris of the eye; "the structure of the iris is very distinctive"|
biometric authentication, biometric identification, identity verification - the automatic identification of living individuals by using their physiological and behavioral characteristics; "negative identification can only be accomplished through biometric identification"; "if a pin or password is lost or forgotten it can be changed and reissued but a biometric identification cannot"