found: Glossary of geology, 1997(archipelago: A sea or area in a sea that contains numerous islands; also, the island group itself)
found: The Amer. Heritage dict. of the Engl. lang., c2000(archipelago pl. -goes or -gos. 1. A large group of islands 2. A sea, such as the Aegean, containing a large number of scattered islands)
found: Web. 3(archipelago, pl. archipelagoes or archipelagos 1: a sea or other expanse of water having many scattered islands 2: a group or cluster of islands)
found: Random House Web. unabr. dict., c1997(archipelago 1. a large group or chain of islands 2. any large body of water with many islands)