Definition of diasporas:
(n) :
(by extension) A similar dispersion.
(n) :
The dispersion of the Jews from the land of Israel.
(n) :
(collective) The Jews so dispersed.
(n) :
(by extension, informal) Jews outside of the land of Israel.
(n) :
The regions where such a dispersed group (especially the Jews) resides, taken collectively.
(n) :
(collective) The dispersion of a group in a manner comparable to that of the Jews among the Gentiles after the Babylonian captivity (6th century BCE).