1. 
   Helianthin
   He`li·an'thin noun [ Prob. from Latin helianthes , or New Latin helianthus , sunflower, in allusion to its color.] (Chemistry) An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -...
   Found op http://www.encyclo.co.uk/webster/H/27
   
   
2. 
   helianthin
   <chemistry> An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry. ... Synonym: methyl orange. ... Origin: Prob. Fr. L. Helianthes, or NL. Helianthus, sunflower, in allusion to its colour. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?helianthin
   
   
3. 
   Helianthin
   • (n.) An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange.
   Found op http://thinkexist.com/dictionary/meaning/helianthin/
   
   

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