[em.pir.i.cism] n (1657) 1 a: a former school of medical practice founded on experience without the aid of science or theory b: quackery, charlatanry
2. a: the practice of relying on observation and experiment esp. in the natural sciences b: a tenet arrived at empirically
3: a theory that all knowledge originates in experience -- em.pir.i.cist n