quinoidine

quinoidine

[kwi-noi-deen, -din]
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.

Origin:
1835–45; quin(ine) + -oid + -ine2

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Medical Dictionary

quinoidine qui·noi·dine (kwĭ-noi'dēn', -dĭn)
n.
A brownish-black mixture of alkaloids remaining after extraction of crystalline alkaloids from cinchona bark, used as a quinine substitute.

The American Heritage® Stedman's Medical Dictionary
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