bi·o·met·ric

[bahy-uh-me-trik]
adjective
1.
pertaining to biometry.
2.
pertaining to, noting, or using a person's unique physical and other traits for the purposes of identification and security: a biometric system; biometric readers; a biometric passport.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
biometric (ˌbaɪəʊˈmɛtrɪk) [Click for IPA pronunciation guide]
 
adj
1.  a.  relating to the analysis of biological data using mathematical and statistical methods
 b.  relating to digital scanning of the physiological or behavioural characteristics of individuals as a means of identification: biometric fingerprinting
2.  relating to the statistical calculation of the probable duration of human life

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Biometric is always a great word to know.
So is doohickey. Does it mean:
a gadget; dingus; thingumbob.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Etymonline
Word Origin & History

biometric
1901, from bio- + metric.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Travelers looking to jet to the boarding areas will be able to cut through
  check-in lines using a biometric scanning system.
Several exhibited different biometric devices that would scan fingerprints and
  other invariant parts of a body.
If successful, the unprecedented effort would form the largest biometric
  database in the world.
The court decided that a new electoral roll with biometric data could indeed be
  ready in time.
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