YucatánPronunciation: /ˌjʊkəˈtɑːn/Definition of Yucatán a state of SE Mexico, at the northern tip of the Yucatán Peninsula; capital, Mérida. Origin:adapted from a Maya name for the language of the Mayan Indians of Oaxaca, MexicoYucatán in other Oxford dictionaries Definition of Yucatán in the US English dictionary