(1):
(a.) Alt. of Empirical
(2):
(n.) One who confines himself to applying the results of mere experience or his own observation; especially, in medicine, one who deviates from the rules of science and regular practice; an ignorant and unlicensed pretender; a quack; a charlatan.
(3):
(n.) One who follows an empirical method; one who relies upon practical experience.