| Bismarck Sea A section of the southwest Pacific Ocean northeast of New Guinea and northwest of New Britain. During World War II it was the site of a major naval battle (March 2-3, 1943) in which the Japanese fleet was completely destroyed. |
| bismarck sea | |
noun | |
| 1. | an arm of the South Pacific to the southwest of the Bismarck Archipelago |
| 2. | a naval battle in World War II; Allied land-based bombers destroyed a Japanese convoy in the Bismarck Sea in March 1943 |