'irridenta' definitions:

Definition of 'irridenta'

noun

A region that is related ethnically or historically to one country but is controlled politically by another [syn: irredenta, irridenta]

From: GCIDE

irridenta \irridenta\, irridentism \irridentism\, irridentist \irridentist\n. See irredenta, irredentism, irredentist. [PJC]