The Collaborative International Dictionary of English. 2000.
opianyl — SYN: meconin … Medical dictionary
meconin — C10H10O4; the lactone of meconic acid, found also in Hydrastis canadensis; a hypnotic. SYN: opianyl. * * * mec·o·nin mek ə nən also mec·o·nine .nēn n a crystalline lactone C10H10O4 found in opium … Medical dictionary