Source : Webster's Revised Unabridged Dictionary (1913)

Fluidounce \Flu"id*ounce`\, n.
   See {Fluid ounce}, under {Fluid}.

Source : WordNet®

fluidounce
     n 1: a British imperial unit of capacity or volume (liquid or
          dry) equal to 8 fluid drams or 28.416 cubic centimeters
          (1.734 cubic inches) [syn: {fluid ounce}]
     2: a United States unit of capacity or volume equal to 1.804
        cubic inches [syn: {fluid ounce}]