mesolect Syllabification: (mes·o·lect)Pronunciation: /ˈmezəˌlekt, ˈmesə-, ˈmēzə-, ˈmēsə-/Definition of mesolect noun (relative to the acrolect and the basilect) an intermediate dialect or variety of a particular language (used especially in the study of Creoles). Derivatives mesolectalPronunciation: /ˌmezəˈlektəl, ˌmesə-, ˌmēzə-, ˌmēsə-/ adjective