tacna-arica

noun

1. a maritime region in W South America: long in dispute between Chile and Peru; annexed by Chile 1883; divided as a result of arbitration 1929 into a Peruvian department (Tac·na) and a Chilean department (Arica).

noun

1. a coastal desert region of W South America, long disputed by Chile and Peru: divided in 1929 into the Peruvian department of Tacna and the Chilean department of Arica