Med. 'A member of the sect among ancient physicians called Empirici, who (in opposition to the Dogmatici and Methodici) drew their rules of practice from experience, to the exclusion of philosophical theory' [OD]. Members of this school relied upon rules of thumb, reading of omens, charms, and incantations.

The practices of the empirics, i.e. their observations, remedies, charms, and incantations.