Saturnalia is a related term of bacchanalia.
As nouns the difference between bacchanalia and saturnalia
is that bacchanalia
is a feast or an orgy in honor of Bacchus while saturnalia
is a period or occasion of general license, in which the passions or vices have riotous indulgence; a period of unrestrained revelry.
As a proper noun Saturnalia is
an Ancient Roman holiday honoring the deity Saturn.
(Greek mythology) A feast or an orgy in honor of Bacchus.
Hence: A drunken feast; drunken revels; an orgy.
* (genus) - the only species