quack -
an untrained person who pretends to be a physician and who dispenses medical advice
physician,
doc,
dr.,
medico,
doctor,
md children take the roles of physician or patient or nurse and pretend they are at the physician's office; "the children explored each other's bodies by playing the game of doctor"
charlatan,
mountebank a flamboyant deceiver; one who attracts customers with tricks or jokes
quack -
the harsh sound of a duck
sound the particular auditory effect produced by a given cause; "the sound of rain on the roof"; "the beautiful sound of music"
Verb
quack -
act as a medical quack or a charlatan
behave,
act,
do behave in a certain manner; "She carried herself well"; "he bore himself with dignity"; "They conducted themselves well during these difficult times"
practice of medicine,
medicine the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard"
quack -
utter quacking noises; "The ducks quacked"
