Relating to the Conjunction of Stars or Planets

This page is the CodyCross answer for the clue below from Futuristic City , Group 983, Puzzle 4 (Coffee Biofuel).

Question is: Relating to the Conjunction of Stars or Planets

and the answer is: SYNODIC

Word Meaning:

SYNODIC — (Christianity) Of, related to or produced by a synod; synodal.

Definitions from Wiktionary.