Source : Webster's Revised Unabridged Dictionary (1913)

Chrysene \Chry"sene\, n. [Gr. chryso`s gold.] (Chem.)
   One of the higher aromatic hydrocarbons of coal tar, allied
   to naphthalene and anthracene. It is a white crystalline
   substance, {C18H12}, of strong blue fluorescence, but
   generally colored yellow by impurities.