noun, plural quack·er·ies.

the practice or methods of a quack.
an instance of this.

Origin of quackery

First recorded in 1700–10; quack2 + -ery
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British Dictionary definitions for quackery


noun plural -eries

the activities or methods of a quack
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 quackery

1690s, from quack (n.) + -ery.

Online Etymology Dictionary, © 2010 Douglas Harper