\Ex*ter"nal*ism\n.
1. The quality of being manifest to the senses; external acts
   or appearances; regard for externals.
         This externalism gave Catholicism a great advantage
         on all sides.                         --E.
                                               Eggleston.
2. (Metaph.) That philosophy or doctrine which recognizes or
   deals only with externals, or objects of sense perception;
   positivism; phenomenalism.