eta meaning and definition

ETA noun

Definition of ETA (noun)

1. a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party; want to create an independent homeland in Spain's western Pyrenees
   • "in 1968 ETA launched a campaign of political assassinations of government officials"
   • synonyms: Basque Fatherland and Liberty, Basque Homeland and Freedom, Euskadi ta Askatasuna
2. the 7th letter of the Greek alphabet