Complex sentence: In other applications, such as modelling heavy-tailed data, where a t or F distribution may be used as an empirical model, there is no particular "degrees of freedom" interpretation of the parameters, even though the terminology may continue to be used.
Split into simpler sentences: In other applications, such as modelling heavy-tailed data, a t or F distribution may be used as an empirical model. In these cases, there is no particular "degrees of freedom" interpretation to the distribution parameters, even though the terminology may continue to be used.