1.nounA giant vine native to South America (especially Banisteriopsis caapi), noted for its psychotropic properties.
"2005, the Amazon forest people would take ayahuasca and enter into that place of Group Mind where they would make decisions for the tribe — Martin Torgoff, Can’t Find My Way Home (Simon & Schuster 2005, p. 414)"
2.nounAny of various psychoactive infusions or decoctions prepared from this vine.