‖Bac′cha‐na″li‐a (–nā″lĭ‐ȧ), n. pl. [L. Bacchanal a place devoted to Bacchus; in the pl. Bacchanalia a feast of Bacchus, fr. Bacchus the god of wine, Gr. Βάκχοσ.]
1. (Myth.) A feast or an orgy in honor of Bacchus.
2. Hence: A drunken feast; drunken revels; an orgy.