capital of Papua New Guinea: seaport on the SE coast of New Guinea: pop. 193,000
See Port Moresby in American Heritage Dictionary 4
The capital and largest city of Papua New Guinea, on southeast New Guinea and the Gulf of Papua. It was named for the British explorer Capt. John Moresby (1830-1922), who landed here in 1873, and occupied by the British after 1888. Population: 283,000.