n :  a bitter poisonous reddish yellow amorphous alkaloid C₂₀H₂₄N₂O₂ isomeric with quinine and obtained from cinchona bark or by heating a salt of quinine - called also quinotoxine  .
 
   
 
Similar sounding terms:  gua·no·sine  ki·ne·sin 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.