"Biometrics" is a general term use altenatively to describe a characteristic or a process.

1. A measurable biological (anatomical and physiological) and behavioral characteristic that can be used fo automated recogniction.
2. Automated methods of recognizing and individaul based on measurable biological (anatomical and physiological) and behavioral chracteristics.

Quote from http://www.biometrics.gov/Documents/biooverview.pdf

There are mary different biometric products that can meet your security requirements.

• Dynamic Signature (315kb)
• Face Recognition (470kb)
• Fingerprint Recognition (358kb)
• Iris Recognition (418kb)
• Speech Recognition (452kb)

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