biometry (n.)

1831, "calculation of life expectancy" (obsolete); see bio- + -metry. Coined by Whewell, popularized 1860s by T.S. Lambert. Later, "application of mathematics to the study of biology" (1894). Related: Biometer, used in various senses from 1830s; from 1865 as "life table," calculating the duration of life under given conditions.