A creole language, or simply a creole, is a stable natural language developed from the mixing of parent languages. Creoles differ from pidgins (which are believed by scholars to be necessary precedents of creoles) in that creoles have been nativized by children as their primary language, with the result that they have features of natural languages that are normally missing from pidgins.
The vocabulary of a creole language is largely supplied by the parent languages, particularly that of the most dominant group in the social context of the creole's construction, though there are often clear phonetic and semantic shifts. On the other hand, the grammar often has original features that may differ substantially from those of the parent languages. (from Wikipedia)