APA Dictionary of Psychology

n. a naturally occurring, mildly hallucinogenic substance found on the skin of a species of toad (genus Bufo) and in plants of the genus Anadenanthera; it is also reported to be a component of the urine of certain patients with schizophrenia. Bufotenin is related chemically to LSD, psilocin, and DMT. See also hallucinogen.