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quack noun

  /kwæk/
  • (pejorative) 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 [from c. 1630]
  • (figuratively, pejorative) Any similar charlatan or incompetent professional.
charlatan, charlatane
  • (jocular, _, slang, mildly, _, pejorative) Any doctor.
toubib

quack verb

  /kwæk/
  • To make a noise like a duck.
cancaner

quack noun

  /kwæk/
  • The sound made by a duck.
coin-coin
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