ipecacuanha /ɪpɪkakjuːˈænə/ noun2 •The root of Carapichea ipecacuanha, used as an emetic or purgative; a preparation of this root used as a drug; ipecac.This ipecacuanha is a most disagreeable medicine! — 1748 •The flowering plant Carapichea ipecacuanha. formsipecacuanhas