Wordnet 3.0
NOUN (1)
1. 
 a native or inhabitant of Cameroon; 
ADJECTIVE (1)
1. 
 of or relating to or characteristic of Cameroon or its people; 
- Example: "the Cameroonian capital"
WordNet (r) 3.0 (2006):
Cameroonian
    adj 1: of or relating to or characteristic of Cameroon or its
           people; "the Cameroonian capital"
    n 1: a native or inhabitant of Cameroon