Definition of empiricism
1a
: a former school of medical practice founded on experience without the aid of science or theory
b
: quackery, charlatanry
2a
: the practice of relying on observation and experiment especially in the natural sciences
b
: a tenet arrived at empirically
3
: a theory that all knowledge originates in experience
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Merriam-Webster unabridged
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Time Traveler for empiricism
The first known use of empiricism was in 1658
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