phenothiazine

[ fee-nuh-thahy-uh-zeen, -zin ]

/ ˌfi nəˈθaɪ əˌzin, -zɪn /

noun

Chemistry. a grayish-green to greenish-yellow, crystalline, water-insoluble solid, C12H9NS, used chiefly as an insecticide and vermifuge, and in the synthesis of pharmaceuticals.

Pharmacology. any of a class of medications used principally to treat psychotic symptoms, as delusions or hallucinations, and excessive excitability.

Nearby words

phenomenalize, phenomenology, phenomenon, phenoplast, phenosafranine, phenothiazine, phenotype, phenotypic value, phenoxide, phenoxy resin, phenoxybenzamine

Origin of phenothiazine

First recorded in 1890–95; pheno- + thiazine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for phenothiazine

phenothiazine

/ (ˌfiːnəʊˈθaɪəziːn) /

noun

a colourless to light yellow insoluble crystalline compound used as an anthelmintic for livestock and in insecticides. Formula: C 12 H 9 NS

any of several drugs derived from phenothiazine and used as strong tranquillizers and in the treatment of schizophrenia

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for phenothiazine

phenothiazine

[ fē′nō-thī′ə-zēn′ ]

n.

A yellow organic compound used in veterinary anthelmintics.thiodiphenylamine

Any of a group of drugs derived from this compound and used as tranquilizers in the treatment of psychiatric disorders, such as schizophrenia.

Science definitions for phenothiazine

phenothiazine

[ fē′nō-thī′ə-zēn′ ]

A yellow or green, toxic organic compound used in insecticides and dyes and to treat infections with worms and other parasites in livestock. Chemical formula: C12H9NS.

Any of a group of drugs derived from this compound. Phenothiazines are dopamine antagonists and are used in the treatment of psychiatric disorders, such as schizophrenia.