Phenanthroline
Pronunciation : Phe*nan"thro*line
Part of Speech : n.
Etymology : [Phenanthrene + quinoline.] (Chem.)
Definition : Defn: Either of two metameric nitrogenous hydrocarbon bases, C12H8N2, analogous to phenanthridine, but more highly nitrogenized.
Source : Webster's Unabridged Dictionary, 1913