e•con•o•met•rics n. (used with a sing. verb) Application of mathematical and statistical techniques to economics in the study of problems, the analysis of data, and the development and testing of theories and models. [econo(mics) + -metrics.] e•con o•met ric, e•con o•met ri•cal adj. e•con o•met ri•cal•ly adv. e•con o•me•tri cian (-m -tr sh n), e•con o•met rist n.