What is "morphinan"

n. (context chemistry English) The base chemical structure of a large class of psychoactive drugs, consisting of opioid analgesics, antitussives, and dissociative hallucinogens, among others.

Morphinan is the prototype chemical structure of a large chemical class of psychoactive drugs, consisting of opiate analgesics, cough suppressants, and dissociative hallucinogens, among others.