QUACK
1 —none. Harsh sound made by ducks. —verb. Utter this sound. [imitative]
1 —none. Harsh sound made by ducks. —verb. Utter this sound. [imitative]
2 none. 1 unqualified practitioner, esp of medicine; charlatan (often attrib.: quack cure). 2 slang any doctor. ? quackery none. [abbreviation of quacksalver from dutch: probably related to *quack1, *salve1]