Metrology (from Ancient Greek metron (measure) and logos (study of))'s the science of measurement. Metrology includes all theoretical and practical aspects of measurement. Introduction Metrology's defined by the International Bureau of Weights and Measures (BIPM) as "the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology." (External Link). The ontology and international vocabulary of metrology (VI… (More on Metrology)