Gulf of Guinea

The Gulf of Guinea is the part of the Atlantic Ocean southwest of Africa. The intersection of the Equator and Prime Meridian (zero degrees latitude and longitude ) is in the gulf. According to the International Hydrographic Organization, the Gulf's oceanic border is the rhumb line that runs from Cape Palmas in Liberia to Cape Lopez in Gabon (IHO Special Publication 23, Limits of Oceans and Seas, 3rd ed. (1953), #34).
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Noun
1. a gulf off the southwest coast of Africa
(hypernym) gulf
(part-holonym) Atlantic, Atlantic Ocean
(part-meronym) Bioko