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| quack [ kwak ] |
noun (plural quacks) |
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| Definition: |
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1. fake doctor: somebody who practices medicine without training or a valid license
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2. a fraud: anyone who falsely claims skills and qualifications
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intransitive verb (past and past participle quacked, present participle quack·ing, 3rd person present singular quacks) |
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| Definition: |
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be quack: to practice medicine without training or a valid license, or to make false claims of expertise in any field
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| [Early 17th century. Shortening of quacksalver] |
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  quack·er·y noun |
| quack·ish adjective |
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