atoll Synonyms

great body of salt water Eigg desert island coral island Clipperton ATOL biodiversity landmass barrier reef barrier island sandbar sand bar half-island Pacific Ocean ducie island ringlike island ring-shaped reef circular coral reef half-isle coral isle rock barrier Atul enclosed by sea coastal landform South Pacific sandbank Bahamas island insularity holm eyot enclave coral cay beach bar bank archipelago islander isle coral reef skerry shoal sanctuary rock ridge reef peninsula palmyra key