WordReference Random House Unabridged Dictionary of American English © 2025
eccle′sias′tical cal′endar,
- Religiona calendar based on the lunisolar cycle, used by many Christian churches in determining the dates for the movable feasts.
- ReligionAlso called church calendar. a calendar of the Christian year, indicating the days and seasons for fasts and festivals.
'ecclesiastical calendar' also found in these entries (note: many are not synonyms or translations):