[f. QUACK sb.1 + -ISM.] Quackery, charlatanism.
1720–1. Lett. Mist’s Jrnl. (1722), II. 22. I understand that is exploded as Quackism by the Judicious.
1762. Lloyd, St. James’s Mag., I. p. iv. Others, in the true spirit of Quackism, circulate their intentions by hand-bills.
1833. Carlyle, Misc. Ess., Cagliostro (1899), 274. What unmeasured masses of Quackism were set fire to.
