perphenazine [per-fen-uh-zeen, -zin] Word Origin noun Pharmacology.

  1. a crystalline, water-insoluble powder, C21H26ClN3OS, used chiefly as a tranquilizer and in the treatment of intractable hiccoughs and nausea and vomiting.

Origin of perphenazine First recorded in 1955–60; per- + phen(othi)azine perphenazine in Medicine perphenazine [pər-fĕn′ə-zēn′] n.

  1. A crystalline compound used as a tranquilizer especially in the treatment of psychosis and to prevent or alleviate nausea and vomiting.

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