Q

An incompetent person in any field of endeavor. A boastful pretender to medical skill; an empiric; an ignorant practitioner. Hence, one who boastfully pretends to skill or knowledge of any kind not possessed; a charlatan.

 - adj. Pertaining to or characterized by, boasting and pretension; used by quacks; pretending to cure diseases; as, a quack medicine; a quack doctor. One, who, without sufficient knowledge, study or previous preparation, and without the diploma of some college or university, undertakes to practice medicine or surgery, under the pretence that he possesses secrets in those arts. He is criminally answerable for his unskillful practice, ...