Meanings of given empirically in English

If the whole is given empirically, it is possible to recede in the series of its internal conditions to infinity.

Antichlamydial therapy is usually effective and should be given empirically to individuals whose presentation places them at high risk for infection.

This synthesis is pure when the diversity is not given empirically but à priori (as that in space and time).

This is true, whether the description is given empirically, or whether it is cited to explain a mechanical feature of the vocal action.