Definitions of Quack:
1. An untrained person who pretends to be a physician and who dispenses medical advice
2. The harsh sound of a duck
3. Utter quacking noises
4. Act as a medical quack or a charlatan
5. Medically unqualified
1. An untrained person who pretends to be a physician and who dispenses medical advice
2. The harsh sound of a duck
3. Utter quacking noises
4. Act as a medical quack or a charlatan
5. Medically unqualified