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The Collaborative International Dictionary
Iridoline

Iridoline \I*rid"o*line\, n. [Iridescent + L. oleum oil.] (Chem.) A nitrogenous base C10H9N, extracted from coal-tar naphtha, as an oily liquid. It is a member of the quinoline series, and is probably identical with lepidine.

Wiktionary
iridoline

n. (context organic compound English) A nitrogenous base of the quinoline series, C10H9N, extracted from coal-tar naphtha as an oily liquid; probably identical with lepidine.