biometric

Etymology

The OED takes it as formed from English bio- + metric, after biometry, and compares French biométrique, recorded in 1838.^[2] Etymonline likewise derives it from the noun with -ic,^[3] and the Shorter Oxford from bio- and -metric.^[4] Merriam-Webster Unabridged and Webster's Third instead call it a back-formation from biometrics.^[5][6] The noun was coined by William Whewell in 1831, first for the calculation of the length of human lives.^[3][2]

Earliest recorded meaning

Of or relating to biometry, the statistical study of biological data: 1894, in the American Anthropologist.^[2] Etymonline dates the adjective to 1888,^[3] Merriam-Webster Unabridged to about 1893,^[5] and Merriam-Webster's Collegiate to 1901.^[7]

Semantic evolution

The adjective followed the history of biometry: this meant at first the measurement of the length of human life (1831–96); from 1901, in Francis Galton, it meant the statistical analysis of data about living things.^[2][3] Collins still records a biometric sense tied to the probable duration of human life.^[8] The modern sense, of physical or behavioural features that identify a person, such as fingerprints or the iris, is recorded from 1981, in the American Banker,^[2] and biometrics in that sense from 1982.^[2] The Shorter Oxford lists biometric signature, a bodily pattern stored on an identity card.^[4] The adjective is used as a noun, a characteristic used to identify a person, from 1989.^[2]

Timeline

• 1894 – of or relating to biometry.^[2]
• 1981 – of features that identify individuals, as in security systems.^[2]
• 1989 – noun, a physical or behavioural feature used to identify a person.^[2]

Meanings

Adjective

1. Relating to the statistical analysis of biological data; relating to biometry.^[8][5][2]
2. Relating to the scanning of a person's physical or behavioural features, such as fingerprints, for identification: a biometric passport.^[8][2]
3. Relating to the statistical calculation of the likely length of human life.^[8]

Noun

1. A physical or behavioural characteristic that identifies an individual, used especially for security.^[2]

Related words

• biometrics
• biometry
• metric

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
5. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
6. ^ Gove, Philip Babcock, ed. (1961), Webster's Third New International Dictionary of the English Language, Unabridged, Springfield, Mass.: G. & C. Merriam
7. ^ Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
8. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins