Definition of chemometrics in US English:

chemometrics

noun

  • With singular concord: the use of mathematical, statistical, and computational techniques in the optimization of procedures for making chemical measurements and in the analysis of chemical data. Occasionally treated as plural: techniques or algorithms of this kind.

Origin

1970s; earliest use found in Biometrics. From chemo- + -metric, after Swedish kemometri (S. Wold 1971, in a research grant proposal).