ˈȯrə̇n noun
( -s )
Etymology: probably from German aurin, from auri- auri- (I) + -in
: a poisonous red dye C 19 H 14 O 3 derived from triphenylmethane often obtained commercially in impure yellowish brown lumps and used chiefly as a dye intermediate — called also pararosolic acid, rosolic acid