island of Tanzania in the Indian Ocean, off the E coast of Africa: 380 sq mi (984 sq km)
See Pemba in American Heritage Dictionary 4
(pĕmˈbə)
An island of Tanzania in the Indian Ocean north of Zanzibar. In the 16th and 17th centuries the Portuguese occupied the island, which was under British control from 1890 until Tanzania was formed in 1964.