# biometric

/ˌbaɪəˈmɛtɹək/ (US) · /bˌaɪəʊmˈɛtɹɪk/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/biometric
Updated: 2026-05-18

## Definition

relating to the physical or behavioral characteristics of a person, like their face, voice, or fingerprints. You use this to describe technology that identifies people based on these unique features.

For teachers: relating to the measurement and statistical analysis of people's physical and behavioral characteristics. Often used to describe security systems that authenticate identity through unique biological traits.

## Examples

- The airport uses biometric scanners to check passengers in.
- Modern smartphones often use biometric data, such as facial recognition or fingerprint scans, to unlock the device quickly and securely.
- The integration of biometric data into national security systems has raised significant ethical concerns regarding privacy and the potential for mass surveillance.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.