Diaspora

Webster's Dictionary of the English Language

·add. ·noun Lit., "Dispersion." — applied collectively: (a) To those Jews who, after the Exile, were scattered through the Old World, and afterwards to Jewish Christians living among heathen. ·cf. James i. 1. (b) By extension, to Christians isolated from their own communion, as among the Moravians to those living, usually as missionaries, outside of the parent congregation.