Dinaphthyl
Pronunciation : Di*naph"thyl
Part of Speech : n.
Etymology : [Pref. di- + naphthylene.] (Chem.)
Definition : Defn: A colorless, crystalline hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical.
Source : Webster's Unabridged Dictionary, 1913