[1] : The Collaborative International Dictionary of English v.0.48

quack \quack\, n.
   1. the cry of the duck, or a sound in imitation of it; a
      hoarse, quacking noise. --chaucer.
      1913 webster

   2. cf. quacksalver. a boastful pretender to medical
      skill; an empiric; an ignorant practitioner.
      1913 webster

   3. hence, one who boastfully pretends to skill or knowledge
      of any kind not possessed; a charlatan.
      1913 webster

            quacks political; quacks scientific, academical.
                                                  --carlyle.
      1913 webster
see also:
quacksalver 

[2] : The Collaborative International Dictionary of English v.0.48

quack \quack\, a.
   pertaining to or characterized by, boasting and pretension;
   used by quacks; pretending to cure diseases; as, a quack
   medicine; a quack doctor.
   1913 webster

[3] : The Collaborative International Dictionary of English v.0.48

quack \quack\, v. i. imp.  p. p. qvacked; p. pr.  vb. n.
   quacking. of imitative origin; cf. d. kwaken, g. quacken,
   quaken, icel. kvaka to twitter.
   1913 webster
   1. to utter a sound like the cry of a duck.
      1913 webster

   2. to make vain and loud pretensions; to boast. " to quack of
      universal cures." --hudibras.
      1913 webster

   3. to act the part of a quack, or pretender.
      1913 webster
see also:
qvacked quacking 

[4] : WordNet (r) 2.0

quack
     adj : medically unqualified; "a quack doctor" syn: quacka
     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
see also:
quacka 

[5] : Moby Thesaurus II by Grady Ward, 1.0

75 moby thesaurus words for "quack":
   blagueur, bluff, bluffer, cackle, call, carol, caw, charlatan,
   charlatanic, charlatanish, chatter, cheep, chirk, chirp, chirr,
   chirrup, chitter, chuck, clack, cluck, cock-a-doodle-doo, coo,
   counterfeit, counterfeiter, croak, cronk, crow, cuckoo, drum, fake,
   faker, fourflusher, fraud, fraudulent, gabble, gaggle, gobble,
   guggle, honk, hoo, hoot, horse doctor, humbug, impersonator,
   impostor, malingerer, medicaster, medicine man, medicine monger,
   mountebank, peep, phony, pip, pipe, poser, poseur, pretender,
   quackish, quacksalver, quackster, ringer, roll, saltimbanco, scold,
   sham, shammer, simulator, sing, squawk, trill, tweet, twit,
   twitter, warble, whistle

[6] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

quack. one, who, without sufficient knowledge, study or previous 
preparation, and without the diploma of some college or university, 
undertakes to practice medicine or surgery, under the pretence that he 
possesses secrets in those arts. 
     2. he is criminally answerable for his unskillful practice, and also, 
civilly to his patient in certain cases. vide mala praxis; physician. 

Quack >> Q Words
Quack, definition of term: Quack
quack_pag1.html

Quackwatch
...Quack Device (posted 9/23/00) Signs of a "Quacky" Web Site (updated 5/10/05) Pro-Quackery.....Quack-Files .. RatbagsDotCom (fighting quackery with humor) Skeptical Information Sources..
http://www.quackwatch.com/, score=100, date indexed=October 5, 2005, 2:36 pm

Characterization of Quack Theories
...A quack will often reply that his ideas have evidence, just not the kind accepted by.....Quack theorists often distort the rest of science is in order to make their favored.....Proponents of quack theories are full of excuses for why they have such meagre evidence of..
http://quasar.as.utexas.edu/BillInfo/Quack.html, score=97, date indexed=March 28, 2005, 12:18 pm

http://www.quackfiles.com/, score=96, date indexed=October 5, 2005, 2:10 pm

Bob McCoy: founder of the The Museum of Questionable Medical Devices
...quack devices. With period advertisements, promotional literature, and gadget instructions.....org/quack.....Quack! Tales of Medical Fraud from .. the Museum of Questionable Medical Devices.. by Bob..
http://www.mtn.org/quack/, score=92, date indexed=October 5, 2005, 4:52 am

neilvandyke.org - Quack
...Other module systems will be supported in future versions of Quack.) Two new sets of font.....You can download file quack.el, version 0.28 (2005-05-14). Quack is now included in GNU.....Quack.. about.. Quack enhances Emacs support for Scheme. It is layered atop the standard..
http://www.neilvandyke.org/quack/, score=92, date indexed=October 5, 2005, 4:14 am

Captain Quack: Rubber Ducks - The only place to buy rubber ducks and rubber...
...Welcome to Captain Quack Rubber Duck Store!Please feel free to explore our collection of..
http://www.captainquack.com/, score=90, date indexed=October 5, 2005, 9:41 am

Quack Internet Solutions: Main Page
...Quack Internet Solutions entwickelt intelligente und effiziente Lösungen, die das.....Quack Internet Solutions entwickelt intelligente und effiziente Lösungen, die das Medium.....Quack 1998-2002..
http://www.quack.ch/, score=90, date indexed=October 5, 2005, 9:34 am

Quack Links
...The Quack Files - a quackery site with an excellent resource section, in English and.....The Bakken Library maintains a special collection of quack devices. Jeff Behary's Turn Of.....Historical Health Physics Instrumentation and Radioactive Quack Cures Collection ..Medical..
http://www.mtn.org/quack/links/links.htm, score=86, date indexed=February 11, 2005, 2:35 am

Camping de Quack, gezellige famlie-camping aan het strand van Hellevoetsluis
...Camping de Quack .. Duinweg 14.. 3221 LC Hellevoetsluis.. Tel: 0181-312646.. Deutsch..
http://www.dequack.nl/, score=86, date indexed=October 5, 2005, 7:58 am

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