quinoidine

[ kwi-noi-deen, -din ]

noun

, Pharmacology.

1. 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.

Word History and Origins

Origin of quinoidine¹

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

Example Sentences

From such liquors it is precipitated in an impure state by an alkali, and brought into commerce under the name of quinoidine.

From Project Gutenberg

The quinoidine of commerce ought never to be used in medicine unless purified.

From Project Gutenberg

Dr de Vrij, for instance, found sometimes more than 20% of quinidine in some samples of quinoidine of commerce.

From Project Gutenberg