資料來源 : Webster's Revised Unabridged Dictionary (1913)

Tetrol \Tet"rol\, n. [Tetra- + benzol.] (Chem.)
   A hypothetical hydrocarbon, {C4H4}, analogous to benzene; --
   so called from the four carbon atoms in the molecule.

   {Tetrol phenol}, furfuran. [Obs.]