a mystical religious festival, held in September at Eleusis in classical times, in which initiates celebrated Persephone, Demeter, and Dionysus
WordReference Random House Unabridged Dictionary of American English © 2025
Eleusin′ian mys′teries,
- Antiquitythe mysteries, celebrated annually at Eleusis and Athens in ancient times, in memory of the abduction and return of Persephone and in honor of Demeter and Bacchus.
- 1635–45
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'Eleusinian mysteries' also found in these entries (note: many are not synonyms or translations):