Quack. n.s. [from the verb.]
- A boastful pretender to arts which he does not understand.
The change, schools and pulpits are full of quacks, jugglers and plagiaries. L'Estrange.
Some quacks in the art of teaching, pretend to make young gentlemen masters of the languages, before they can be masters of common sense. Felton on the Classicks.
- A vain boastful pretender to physick; one who proclaims his own medical abilities in publick places.
At the first appearance that a French quack made in Paris: a little boy walked before him, publishing with a shrill voice, "My father cures all sorts of distempers;" to which the doctor added in a grave manner, "The child says true." Addison.
- An artful tricking practitioner in physick.
Despairing quacks with cures fled the place,
And vile attorneys, now an useless race. Pope.