'Biostatistics' definitions:

Definition of 'biostatistics'

noun

A branch of biology that studies biological phenomena and observations by means of statistical analysis [syn: biometrics, biometry, biostatistics]

From: GCIDE

Biostatistics \Bi`o*sta*tis"tics\, n. [Gr. bi`os life + E. statistics.] (Biol.) Vital statistics. [1913 Webster]