from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Relying on or derived from observation or experiment: empirical results that supported the hypothesis.
- adj. Verifiable or provable by means of observation or experiment: empirical laws.
- adj. Guided by practical experience and not theory, especially in medicine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Pertaining to or based on experience.
- adj. Pertaining to, derived from, or testable by observations made using the physical senses or using instruments which extend the senses.
- adj. Verifiable by means of scientific experimentation.
from The Century Dictionary and Cyclopedia
- Pertaining to or derived from experience or experiments; depending upon or derived from the observation of phenomena.
- as a general proposition, from a narrow range of observation, without any warrant for its exactitude or for its wider validity.
- Pertaining to the medical practice of an empiric, in either of the medical senses of that word; hence, charlatanical; quackish.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. relying on medical quackery
- adj. derived from experiment and observation rather than theory
From empiric + -al. (Wiktionary)