An island group in southwestern Alaska, part of the Aleutian Islands, that lie between the Near and Andreanof islands. Amchitka and Kiska islands are also included.
Definition of Rat Islands in US English:
Rat Islands
proper noun
An island group in southwestern Alaska, part of the Aleutian Islands, that lie between the Near and Andreanof islands. Amchitka and Kiska islands are also included.