Dictionary
syn•od•ic
Pronunciation: (si-nod'ik), [key]—
adj.
1. Astron.pertaining to a conjunction, or to two successive conjunctions of the same bodies.
2. of or pertaining to a synod; synodal.
Also,syn•od'i•cal.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.