(n)a landlocked republic in West Africa; gained independence from France in 1960; most of the country is dominated by the Sahara Desert, Syn.Republic of Niger
(n)a republic in West Africa on the Gulf of Guinea; gained independence from Britain in 1960; most populous African country, Syn.Federal Republic of Nigeria
prop. adj. 1. of, pertaining to, or characteristic of the country Nigeria; as, The Nigerian capital used to be Lagos. [ WordNet 1.5 ]
2. Of, pertaining to, or characteristic of the inhabitants of Nigeria; as, A Nigerian novelist won the Noble Prize for literature this year. [ WordNet 1.5 ]