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quinoidine

American

[kwi-noi-deen, -din] / kwɪˈnɔɪ din, -dɪn /

noun

Pharmacology.

a brownish-black, resinous substance consisting of a mixture of alkaloids, obtained as a by-product in the manufacture of quinine and formerly used as a cheap substitute for it.

First recorded in 1835–45; quin(ine) + -oid + -ine ²

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023