A fraudulent healer, especially a bombastic peddler in worthless treatments, a doctor who makes false diagnoses for monetary benefit, or an untrained or poorly trained doctor who uses fraudulent credentials to attract patients
Any similar charlatan or incompetent professional.
The sound made by a duck.
Any doctor.
To make a noise like a duck.
Of a queen bee: to make a high-pitched sound during certain stages of development.
To practice or commit quackery (fraudulent medicine).
Falsely presented as having medicinal powers.