Quack

kwak, v.i. to cry like a duck: to boast: to practise as a quack.— v.t. to doctor by quackery.— n. the cry of a duck: a boastful pretender to skill which he does not po e , esp. medical skill: a mountebank.— adj. pertaining to quackery: used by quacks.— n. Quack′ery , the pretensions or practice of a quack, esp. in medicine.— adj. Quack′ish , like a quack: boastful: trickish.— n. Quack′ism .— v.i. Quack′le ( rare ), to quack, croak.— n. Quack′salver , a quack who deals in salves, ointments, .: a quack generally.— adj. Quack′salving . [Imit.; cf. Ger. quaken , Dut. kwaken , Gr. koax , a croak.]