ˌhēlēˈan(t)thə̇n noun
also he·li·an·thine “, -anˌthēn
( -s )
Etymology: International Scientific Vocabulary helianth- (from New Latin Helianthus; from its color) + -in, -ine
1. : a red compound (CH 3 ) 2 N + . C 6 H 4 . NNHC 6 H 4 SO 3 - of quinone structure obtained by acidifying methyl orange
2. : methyl orange