a potent antipsychotic drug with formula C21H26ClN3OS, used to treat psychoses such as schizophrenia
perphenazine in American English
(pərˈfenəˌzin, -zɪn)
noun
Pharmacology
a crystalline, water-insoluble powder, C21H26ClN3OS, used chiefly as a tranquilizer and in the treatment of intractable hiccoughs and nausea and vomiting
Word origin
[1955–60; per- + phen(othi)azine]This word is first recorded in the period 1955–60. Other words that entered Englishat around the same time include: geodesic dome, life-support, opioid, rollout, softwareper- is a prefix meaning “through,” “thoroughly,” “utterly,” “very”. Other words thatuse the affix per- include: perfect, pervade, pervert