2. (foll by with) to associate (oneself) or be associated, esp as a subordinate or subsidiary; bring or come into close connection: he affiliated himself with the Union. b. (as modifier): an affiliate member.
Opiate is a term classically used in pharmacology to mean a drug derived from opium. Opioid, a more modern term, is used to designate all substances, both natural and synthetic, that bind to opioid receptors (including antagonists}. Opiates are alkaloid compounds naturally found in the opium poppy plant Papaver somniferum.
Opium. Home Â» Opium. Opium is a naturally occurring narcotic found in the seeds of the opium poppy plant and contains morphine. Opium can be extracted to produce heroin, an illegal drug that has a high abuse potential.