noun (sometimes used with a plural verb)
the annual festival in ancient Rome in which the lemures were exorcised from houses.
Also Le·mu·ri·a [le-myoo r-ee-uh] /lɛˈmyʊər i ə/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for lemuralia
They were so feared that a festival, called the Lemuralia, was celebrated in order to propitiate them.Myths and Legends of Ancient Greece and Rome|E.M. Berens