Source : Webster's Revised Unabridged Dictionary (1913)

Opodeldoc \Op`o*del"doc\, n. [So called by Paracelsus. The first
   syllable may be fr. Gr. ? vegetable juice.]
   1. A kind of plaster, said to have been invented by
      Mindererus, -- used for external injuries. [Obs.]

   2. A saponaceous, camphorated liniment; a solution of soap in
      alcohol, with the addition of camphor and essential oils;
      soap liniment.