[ per-fen-uh-zeen, -zin ]
/ pərˈfɛn əˌzin, -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.

Nearby words

  1. perpetual-motion machine,
  2. perpetuate,
  3. perpetuation,
  4. perpetuity,
  5. perpetuous,
  6. perpignan,
  7. perplex,
  8. perplexed,
  9. perplexing,
  10. perplexity

Origin of perphenazine

First recorded in 1955–60; per- + phen(othi)azine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for perphenazine


[ pər-fĕnə-zēn′ ]


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

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.