Source : Webster's Revised Unabridged Dictionary (1913)

Trikosane \Tri"ko*sane\, n. [Pref. tri- + Gr. ? twenty.] (Chem.)
   A hydrocarbon, {C23H48}, of the methane series, resembling
   paraffin; -- so called because it has twenty-three atoms of
   carbon in the molecule.