quack
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quack 1
(kwăk)n.
The characteristic sound uttered by a duck.
intr.v. quacked, quack·ing, quacks
To utter the characteristic sound of a duck.
[Middle English quek, of imitative origin.]
quack′y adj.
quack 2
(kwăk)n.
1. An untrained person who pretends to be a physician and dispenses medical advice and treatment.
2. A charlatan; a mountebank.
adj.
Relating to or characteristic of a quack: a quack cure.
intr.v. quacked, quack·ing, quacks
To act as a medical quack or a charlatan.
[Short for quacksalver.]
quack′er·y n.
quack′ish adj.
quack′ish·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
quack
(kwæk)vb (intr)
1. (of a duck) to utter a harsh guttural sound
2. to make a noise like a duck
n
the harsh guttural sound made by a duck
[C17: of imitative origin; related to Dutch kwakken, German quacken]
quack
(kwæk)n
1.
a. an unqualified person who claims medical knowledge or other skills
b. (as modifier): a quack doctor.
2. (Medicine) informal Brit and Austral and NZ a doctor; physician or surgeon
vb
(intr) to act in the manner of a quack
[C17: short for quacksalver]
ˈquackish adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
quack1
(kwæk)n.
1. the harsh, throaty cry of a duck or any similar sound.
v.i. 2. to utter a quack.
[1610–20; compare Dutch kwakken, German quacken]
quack2
(kwæk)n.
1. a fraudulent pretender to medical skill.
2. a person who pretends, professionally or publicly, to skill, knowledge, or qualifications he or she does not possess; a charlatan.
adj. 3. being a quack: a quack psychologist.
4. of, pertaining to, or befitting a quack or quackery: quack methods; quack medicine.
[1620–30; short for quacksalver]
quack′ish, adj.
quack′ish•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
quack
Past participle: quacked
Gerund: quacking
| Imperative |
|---|
| quack |
| quack |
Collins English Verb Tables © HarperCollins Publishers 2011
ThesaurusAntonymsRelated WordsSynonymsLegend:
Switch to new thesaurus
| Noun | 1. |  quack - an untrained person who pretends to be a physician and who dispenses medical advicedoc, doctor, physician, Dr., MD, medico - a licensed medical practitioner; "I felt so bad I went to see my doctor" charlatan, mountebank - a flamboyant deceiver; one who attracts customers with tricks or jokes |
| 2. | quack - the harsh sound of a duck sound - the sudden occurrence of an audible event; "the sound awakened them" | |
| Verb | 1. | quack - utter quacking noises; "The ducks quacked" |
| 2. | quack - act as a medical quack or a charlatan practice of medicine, medicine - the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard" | |
| Adj. | 1. | quack - medically unqualified; "a quack doctor" unqualified - not meeting the proper standards and requirements and training |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
quack
noun
1. doctor, GP, physician, medical practitioner I went everywhere for treatment, tried all sorts of quacks.
adjective
1. fake, fraudulent, phoney or phony (informal), pretended, sham, counterfeit Why do intelligent people find quack remedies so appealing?
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
quack
nounThe American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
TranslationsSelect a language:
Spanish / Español
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
quack1
(kwak) noun the cry of a duck. graznido
verb to make such a sound. The ducks quacked noisily as they swam across the pond.graznar
quack2
(kwak) noun (used as an adjective) a person who dishonestly claims to have medical qualifications. a quack doctor/psychologist; quack medicine/cures.curandero; matasanos
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
quack
n. charlatán, persona que pretende tener cualidades o conocimientos para curar enfermedades.
English-Spanish Medical Dictionary © Farlex 2012
quack
n (fam) matasanos mf, charlatán -tana mfEnglish-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.