You searched for: “quack
quack
Someone who falsely claims to possess medical skill and the ability to provide proper treatment.
quack (KWAK) (s) (noun), quacks (pl)
1. An individual who pretends to be a doctor, administering medical advise; an untrained medical imposter: When legitimate doctors couldn't help his painful back trouble, Mark resorted to quacks for help.
2. A charlatan, a phony or a fake: Dana realized that the psychiatrist was really a quack and so she decided to go to the clinic for help.
3. Etymology: a quack or "fake doctor", is a short form of quacksalver, from Dutch kwakzalver, "charlatan".

Dutch kwakken means "to quack", so the word may originally have meant "someone who quacks boastfully, like a duck, about his salve or other medical remedies".

This entry is located in the following unit: English Words in Action, Group Q (page 1)
A unit related to: “quack
(Italian, "chatter, prattle" > French: deceive, deceiver; swindle, swindler; fraud, quack, chiseler)