Meaning of irredentism in English:

irredentism

Pronunciation /??r??d?nt?z(?)m/

noun

mass noun
  • 1A policy of advocating the restoration to a country of any territory formerly belonging to it.

    1. 1.1historical (in 19th-century Italian politics) a policy of advocating the return to Italy of all Italian-speaking districts subject to other countries.

Origin

Late 19th century from irredentist + -ism.