Definition of multidialectal in English:

multidialectal

adjective

  • Able to speak or understand two or more dialects of the same language.

Origin

1960s; earliest use found in English Studies: a journal of English letters and philology. From multi- + dialectal, after multilingual, bidialectal.

Pronunciation

multidialectal

/ˌmʌltɪdʌɪəˈlɛktl/