noun Pharmacology.

  1. a synthetic narcotic, C21H28ClNO, similar to morphine but effective orally, used in the relief of pain and as a heroin substitute in the treatment of heroin addiction.


  1. a narcotic analgesic drug similar to morphine, used to treat opiate addiction. Formula: C 21 H 27 NO

n.1947, generic designation for 6-dimethylamino-4, 4-diphenyl-3-heptanone. For origins of the syllables, see methyl + amino + di- + -one. An analgesic that is sometimes used in the treatment of drug addiction.

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