Source : Webster's Revised Unabridged Dictionary (1913)

Dom \Dom\, n. [Pg. See {Don}.]
   1. A title anciently given to the pope, and later to other
      church dignitaries and some monastic orders. See {Don},
      and {Dan}.

   2. In Portugal and Brazil, the title given to a member of the
      higher classes.

Source : Free On-Line Dictionary of Computing

DOM
     
        {Document Object Model}