relating to or expressed in terms of a parameter or parameters.
Statistics assuming the value of a parameter for the purpose of analysis:variables with normal distribution were compared by means of parametric tests
Electronics relating to or denoting a process in which amplification or frequency conversion is obtained using a device modulated by a pumping frequency, which enables power to be transferred from the pumping frequency to the signal.
parametric in other Oxford dictionaries
Definition of parametric in the US English dictionary