Phenanthrene \Phe*nan"threne\, n. [Phenyl + antracene.] (Chem.)
A complex hydrocarbon, {C14H10}, found in coal tar, and
obtained as a white crystalline substance with a bluish
fluorescence.
Tolane \To*lane"\, n. [From {Toluene}.] (Chem.)
A hydrocarbon, {C14H10}, related both to the acetylene and
the aromatic series, and produced artificially as a white
crystalline substance; -- called also {diphenyl acetylene}.