Externalism
Pronunciation : Ex*ter"nal*ism n.
Definition : 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.)
Defn: That philosophy or doctrine which recognizes or deals only with externals, or objects of sense perception; positivism; phenomenalism.
Source : Webster's Unabridged Dictionary, 1913