synodical Syllabification: (syn·od·i·cal)Pronunciation: /səˈnädikəl/Definition of synodical adjective 1 Christian Church of, relating to, or constituted as a synod:synodical government 2 Astronomyanother term for synodic.Derivatives synodalPronunciation: /ˈsinədl/ adjective sense 1.synodical in other Oxford dictionaries Definition of synodical in the British & World English dictionary