Source : Webster's Revised Unabridged Dictionary (1913)

Ipecacuanha \Ip`e*cac`u*an"ha\, n. [Pg. ipecacuanha (cf. Sp.
   ipecacuana); fr. Braz. ipe-kaa-guena, prop., a creeping plant
   that causes vomiting.] (Med. & Bot.)
   The root of a Brazilian rubiaceous herb ({Cepha["e]lis
   Ipecacuanha}), largely employed as an emetic; also, the plant
   itself; also, a medicinal extract of the root. Many other
   plants are used as a substitutes; among them are the black or
   Peruvian ipecac ({Psychotria emetica}), the white ipecac
   ({Ionidium Ipecacuanha}), the bastard or wild ipecac
   ({Asclepias Curassavica}), and the undulated ipecac
   ({Richardsonia scabra}).