(medicine, now chiefly historical) Medicine as practised by an empiric, founded on mere experience, without the aid of science or a knowledge of principles; folk medicine, quackery.

plural of empiricism

Quality of being empirical.

(philosophy) A theory of knowledge championed by William James which contested that the relations between objects are as real as the objects themselves and values experience as a way of knowing.

(sociology) a term created by C. Wright Mills to describe sociological work that has a high focus on empirical methodology, particularly work that fixated with survey methods and their quantifiability.