phenothiazine

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

noun

1. Chemistry. a grayish-green to greenish-yellow, crystalline, water-insoluble solid, C 1 2 H 9 NS, used chiefly as an insecticide and vermifuge, and in the synthesis of pharmaceuticals.
2. Pharmacology. any of a class of medications used principally to treat psychotic symptoms, as delusions or hallucinations, and excessive excitability.

phenothiazine

/ ˌfiːnəʊˈθaɪəziːn /

noun

1. a colourless to light yellow insoluble crystalline compound used as an anthelmintic for livestock and in insecticides. Formula: C 12 H 9 NS
2. any of several drugs derived from phenothiazine and used as strong tranquillizers and in the treatment of schizophrenia

phenothiazine

/ fē′nō-thī′ə-zēn′ /

1. 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: C 12 H 9 NS.
2. 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.

Word History and Origins

Origin of phenothiazine¹

First recorded in 1890–95; pheno- + thiazine

Example Sentences

DDT, methoxychlor, malathion, phenothiazine, and various dinitro compounds are among the numerous pesticides that have been found to inhibit one or more of the enzymes concerned in the cycle of oxidation.

From Literature