Definition of "quacks" []

• Plural form of quack. (noun)
• Third-person singular simple present indicative form of quack. (verb)

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• "A close sequence of quacks is the hen mallard distress signal."
• "That is science, but as for destroying the cancer bacillus they leave that to the physicians whom they call quacks for curing what the professors cannot cure."
• ""The consequence would be that, as now, anybody who pleases might practise; for the medical world is well aware that there is no power of preventing what they call quacks from practising."