quack

2
[kwak]
||

noun

a fraudulent or ignorant pretender to medical skill.
a person who pretends, professionally or publicly, to skill, knowledge, or qualifications he or she does not possess; a charlatan.

adjective

verb (used with object)

to treat in the manner of a quack.
to advertise or sell with fraudulent claims.

Nearby words

  1. qu yuan,
  2. qu'appelle,
  3. qu.,
  4. qua,
  5. quaalude,
  6. quack grass,
  7. quacker,
  8. quackery,
  9. quacksalver,
  10. quaco

Origin of quack

2
First recorded in 1620–30; short for quacksalver

SYNONYMS FOR quack
Related formsquack·ish, adjectivequack·ish·ly, adverbquack·ish·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for quackish



British Dictionary definitions for quackish

quack

1

verb (intr)

(of a duck) to utter a harsh guttural sound
to make a noise like a duck

noun

the harsh guttural sound made by a duck

Word Origin for quack

C17: of imitative origin; related to Dutch kwakken, German quacken

quack

2

noun

  1. an unqualified person who claims medical knowledge or other skills
  2. (as modifier)a quack doctor
British, Australian and NZ informal a doctor; physician or surgeon

verb

(intr) to act in the manner of a quack
Derived Formsquackish, adjective

Word Origin for quack

C17: short for quacksalver

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for quackish
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for quackish

quack

[kwăk]

n.

An untrained person who pretends to be a physician and dispenses medical advice and treatment.
A charlatan.
Related formsquacker•y n.


The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.