empiricism vs quackery

empiricism and quackery both are nouns.

Word	Noun	Adjective	Verb	Adverb
empiricism	Yes	No	No	No
quackery	Yes	No	No	No

As nouns, empiricism and quackery are synonyms defined as:

empiricism and quackery: medical practice and advice based on observation and experience in ignorance of scientific findings

empiricism (noun)	quackery (noun)
the application of empirical methods in any art or science	medical practice and advice based on observation and experience in ignorance of scientific findings
medical practice and advice based on observation and experience in ignorance of scientific findings	the dishonesty of a charlatan
(philosophy) the doctrine that knowledge derives from experience