Webster's Revised Unabridged Dictionary · 1913

Empiric

Empiric (?; 277) , noun

[Latin empiricus an empiric, Greek {not transcribed} experienced, equiv. to {not transcribed}; {not transcribed} in + {not transcribed} a trial, experiment; akin to {not transcribed} ford, way, and English fare: compare French empirique. See In, and Fare.]

1.
One who follows an empirical method; one who relies upon practical experience.
2.
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.
Among the Greek physicians, those who founded their practice on experience called themselves empirics. — Krauth-Fleming
Swallow down opinions as silly people do empirics' pills. — Locke

Empiric , adjective

1.
Pertaining to, or founded upon, experiment or experience; depending upon the observation of phenomena; versed in experiments.
In philosophical language, the term empirical means simply what belongs to or is the product of experience or observation. — Sir W. Hamilton
The village carpenter... lays out his work by empirical rules learnt in his apprenticeship. — H. Spencer
2.
Depending upon experience or observation alone, without due regard to science and theory; -- said especially of medical practice, remedies, etc.; wanting in science and deep insight; as, empiric skill, remedies.
Collocations (1)
Empirical formula (Chemistry) , See under Formula.

Also: Empirical