From Wikipedia: Quackery
of fraudulent or ignorant
. A quack
"fraudulent or ignorant pretender to medical skill"
or "a person who pretends, professionally or
publicly, to have skill, knowledge, or
qualifications he or she does not possess; a
The term quack
of the archaic term
a "hawker of salve".
the term quack
"shouting". The quacksalvers sold their wares on the
market shouting in a loud voice.
Common elements of general quackery include
questionable diagnoses using
questionable diagnostic tests, as well as
alternative or refuted treatments, especially for
serious diseases such as
cancer. Quackery is often described as "health
fraud" with the salient characteristic of aggressive