miaphysite /maɪˈæfɪsaɪt/adjective 1noun 1forms 1 adjective1 •Of or pertaining to Miaphysitism; maintaining that Christ has a single, though composite, nature.The leaders of the Miaphysite cause across the empire still loudly proclaimed their loyalty to the imperial throne, and there is no reason to doubt that most were sincere. — 2009 noun1 •A believer in Miaphysitism, (specifically) a member of the Oriental Orthodox Church. formsmiaphysites