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retinal scan

retinal scan in Culture

retinal scan definition


A technology for the identification of individuals that depends on the uniqueness of the pattern of blood vessels in the retinas of people's eyes.

Note: Retinal scans are one means of identification that developed rapidly following the September 11 attacks (2001).
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
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