noun qui·noi·dine \kwə̇ˈnȯiˌdēn, -dən\
variants: or



Definition of quinoidine



  1. :  a bitter brownish resinous mixture often molded into sticks of amorphous alkaloids obtained as a by-product in the extraction of cinchona bark for crystalline alkaloids and formerly used as a substitute for quinine

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Origin and Etymology of quinoidine

International Scientific Vocabulary quin- + -oid + -ine or -in

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