perphenazine perpetuity • perplantar · · · Info · Definitions · Synonyms · Characters · · perphenazine · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) tranquilizer and antidepressant (trade name Triavil) sometimes used as an antiemetic for adults. Synonyms: Triavil. · · Noun Definition 1 Synonyms · · · triavil · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 z latin small letter z U+007A