Assyrogenous UK /æsɪˈɹɒdʒɪnəs/US /æsɪˈɹɑd͡ʒɪnəs/ adjective1 •Of or pertaining to several ethnic groups known as Assyrians or from Assyria, for example Syrians, Jacobites, Nestorians, and Chaldeans, and arguably also Maronites, Melkites, and Arameans.