Biometric describes machines and computer systems that measure a living body in order to check who someone is. The usual measurements are fingerprints, the face, the iris of the eye, sometimes the voice or the way a person walks. Those measurements are kept on a computer and then matched later — at an airport passport gate, on a phone lock, at an office door.

Biometric describes machines and computer systemsbiometric是在形容機器和電腦系統 that measure a living body in order to check who someone is這些系統會測量活生生的身體，來確認一個人是誰。The usual measurements are fingerprints, the face, the iris of the eye常見的測量項目是指紋、臉，還有眼睛的虹膜 sometimes the voice or the way a person walks有時候是聲音，或一個人走路的樣子。Those measurements are kept on a computer and then matched later這些測量資料會存在電腦裡，之後再拿來比對 — at an airport passport gate, on a phone lock, at an office door——像機場的護照關卡、手機解鎖，或辦公室的門。

You will see biometric passport, biometric scan, biometric data. It is a describing word in those phrases, and people also say biometrics as a noun for the whole method. The tone is official and technical, not warm.

You will see biometric passport, biometric scan, biometric data你會看到biometric passport（生物辨識護照）、biometric scan（生物辨識掃描）、biometric data（生物辨識資料）。It is a describing word in those phrases在這些詞組裡它是形容詞 and people also say biometrics as a noun for the whole method大家也會用biometrics當名詞，指整套方法。The tone is official and technical, not warm語氣是官方、技術性的，不帶溫度。

Though actually, an older scientific use of biometrics meant the statistics of living measurements — heights, harvests, and so on. That meaning is still in some research papers. In ordinary life now, the word almost always points to identity machines.

Though actually, an older scientific use of biometrics meant the statistics of living measurements不過其實比較舊的科學用法裡，biometrics指的是生物測量的統計學 — heights, harvests, and so on——像身高、收成之類的。That meaning is still in some research papers這個意思在一些研究論文裡還看得到。In ordinary life now, the word almost always points to identity machines但現在日常生活裡，這個字幾乎都是指身分辨識機器。