a crystalline, water-insoluble powder, C21H26ClN3OS, used chiefly as a tranquilizer and in the treatment of intractable hiccoughs and nausea and vomiting.
per·phen·a·zine (pər-fěn'ə-zēn') n. A crystalline compound, C21H26ClN3OS, used as a tranquilizer especially in the treatment of psychosis and to prevent or alleviate nausea and vomiting.
Main Entry: per·phen·a·zine Pronunciation: (")p&r-'fen-&-"zEn Function: noun : a phenothiazine tranquilizerC21H26ClN3OS that is used to control tension, anxiety, and agitation especially in psychotic conditions
perphenazine per·phen·a·zine (pər-fěn'ə-zēn') n. A crystalline compound used as a tranquilizer especially in the treatment of psychosis and to prevent or alleviate nausea and vomiting.