biometric
This term describes the intersection of biology and measurement, specifically for the purpose of identification. It carries a high-tech, clinical connotation and is almost exclusively used in the context of security, forensics, and digital authentication. When used as a noun, the word refers to the specific data point itself. While it is a countable noun, it is frequently encountered in the plural form "biometrics" to describe the entire field of study or a set of multiple identifiers used for a single person.
Meanings
Relating to the measurement and statistical analysis of people's unique physical and behavioral characteristics.
"The company implemented a biometric security system to prevent unauthorized access."
A unique biological measurement or physical characteristic used for automated recognition.
"The scanner captures a biometric such as a fingerprint or iris pattern to verify identity."