The Collaborative International Dictionary of English v.0.48:
econometrics \e*con`o*met"rics\ ([-e]*k[o^]n`[-o]*m[e^]t"r[i^]ks), n. the application of mathematics and statistics to the study of economic and financial data. [WordNet 1.5] EconomicWordNet (r) 3.0 (2006):
econometrics n 1: the application of mathematics and statistics to the study of economic and financial data