disputation
From Longman Dictionary of Contemporary Englishdisputationdis‧pu‧ta‧tion /ˌdɪspjəˈteɪʃən/ noun [countable, uncountable] formal DISAGREEa discussion about a subject which people cannot agree onExamples from the Corpusdisputation• Our progress was made noisy, too, by disputation.• In my opinion, this empty disputation will eventually take its place with the many other myths of human evolution.• Conflict doesn't just involve us in disputations with others.• You let yourself feel the truth and the balance of that disputation.