KhalkhaPronunciation: /ˈkɑːlkə/Definition of Khalkha noun (plural same or Khalkhas) 1a member of a section of the Mongolian people, constituting the bulk of the population of Mongolia. 2 [mass noun] the language of the Khalkha, a demotic form of Mongolian adopted as the official language of Mongolia. adjective relating to the Khalkha or their language. Origin:of unknown originKhalkha in other Oxford dictionaries Definition of Khalkha in the US English dictionary