Calabar n. : A district on the west coast of Africa.

Example:
what are the causes of Calabar chalk often eaten by African pregnant women?

Taxonomy
Calabar, Obong, city, Nigeria, Cross River State, free encyclopedia, the Cross, Calabar River, Nigerian Navy, country, population, Southeastern Nigeria, History, Political authority, Old Calabar, Duke Town, Christmas Festival, Efik.

Defination from the web:
Calabar River and Great Qua Rivers and creeks of the Cross River (from its inland delta) ... Passengers boarding a Nigeria Airways Boeing 737 at Calabar Airport in 1981 for a flight to Lagos ...