Noun
English Wikipedia has an article on:azaleinWikipedia azalein (uncountable) (organic chemistry) A flavonol 2-(3,4-dihydroxyphenyl)-7-hydroxy-5-methoxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one