econ·o·me·trics \-ˈme.triks\noun plural but singular in construction Etymology: from econometric, after such pairs as English economic: economics : the application of mathematical form and statistical techniques to the testing and quantifying of economic theories and the solution of economic problems • econ·o·met·rist\-trə̇st; ˌekəˈnämə.tr-, ˌēk-\noun-s