biometrics (n.)youdaoicibaDictYouDict[biometrics 词源字典]
"application of mathematics to biology," 1902, from biometric (also see -ics); slightly earlier in this sense was biometry (1901), which was coined by Whewell and used by him and others with a sense of "calculation of life expectancy" (1831).[biometrics etymology, biometrics origin, 英语词源]