quack /ˈkwæk/
 鴨叫聲,庸醫,冒充內行之人(a.)庸醫的(vt.)(vi.)嘎嘎叫,當庸醫,誇大廣告


 quack /ˈkwæk/ 名詞
 江湖醫


 Quack v. i. [imp. & p. p. Qvacked p. pr. & vb. n. Quacking.]
 1. To utter a sound like the cry of a duck.
 2. To make vain and loud pretensions; to boast. “ To quack of universal cures.”
 3. To act the part of a quack, or pretender.


 Quack, n.
 1. The cry of the duck, or a sound in imitation of it; a hoarse, quacking noise.
 2.  A boastful pretender to medical skill; an empiric; an ignorant practitioner.
 3. Hence, one who boastfully pretends to skill or knowledge of any kind not possessed; a charlatan.
    Quacks political; quacks scientific, academical.   --Carlyle.


 Quack, a. Pertaining to or characterized by, boasting and pretension; used by quacks; pretending to cure diseases; as, a quack medicine; a quack doctor.

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 quack
      adj : medically unqualified; "a quack doctor" [syn: quack(a)]
      n 1: an untrained person who pretends to be a physician and who
           dispenses medical advice
      2: the harsh sound of a duck
      v 1: utter quacking noises; "The ducks quacked"
      2: act as a medical quack or a charlatan