quack

quack (kwak) one who misrepresents their ability and experience in diagnosis and treatment of disease or effects to be achieved by their treatment.

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quack (kwk)

n.

1. An untrained person who pretends to be a physician and dispenses medical advice and treatment.

2. A charlatan.

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quacker·y n.

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quack,

n one who professes to have medical or dental skill that is not possessed; one who practices medicine or dentistry without adequate preparation or proper qualification.

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quack

slang for a person who misrepresents his/her qualifications as a veterinarian, and therefore ability and experience in diagnosis and treatment of animal disease or the effects to be achieved by the treatment. Refers usually to a person without any qualifications who practices in breach of the local veterinary regulations and is liable to a heavy fine as a result.