Relating to the measurement and analysis of unique physical or behavioral characteristics for identification purposes.
From Greek 'bios' meaning life and 'metron' meaning measure. The term was coined in the early 20th century but became prominent with computer technology in the 1960s for automated identification systems.
Your iris patterns are so unique that even identical twins have different iris structures, making iris scanning one of the most secure biometric methods. Ancient Chinese officials used thumbprints on documents over 1,000 years ago, making them early biometric pioneers.
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