| umls-concept:C0026548 | skos:definition | MSH: Compounds based on a partially saturated iminoethanophenanthrene, which can be described as ethylimino-bridged benzo-decahydronaphthalenes. They include some of the OPIOIDS found in PAPAVER that are used as ANALGESICS.,CSP: parent substance of morphine alkaloids. | lld:umls |
