quin·i·dine (kwĭn'ĭ-dēn')
n.
A colorless crystalline alkaloid, C₂₀H₂₄N₂O₂, resembling quinine and used in treating malaria and certain heart disorders.

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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