Bismarck Sea bis·marck·sea uncommon noun 1. an arm of the South Pacific southwest of the Bismarck Archipelago SynonymsBismarck Sea 2. World War II naval battle; Allied land-based bombers destroyed a Japanese convoy in the Bismarck Sea in March 1943 SynonymsBismarck Seabattle of the Bismarck Sea Related words Broader terms naval battlesea Parts World War II WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
