Definition of Helianthin. Meaning of Helianthin. Synonyms of Helianthin

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Definition of Helianthin

Helianthin
Helianthin He`li*an"thin, n. [Prob. fr. L. helianthes, or NL. helianthus, sunflower, in allusion to its color.] (Chem.) An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange.

Meaning of Helianthin from wikipedia