The Collaborative International Dictionary
Synodically
Synodically \Syn*od"ic*al*ly\, adv.
In a synodical manner; in a synod; by the authority of a
synod. ``Synodically agreed upon.''
--R. Nelson.
Wiktionary
synodically
adv. In a synodical manner; in a synod; by the authority of a synod.