a. rare. [f. L. quinquātrūs f. pl. or quinquātria n. pl. + -IC.] Rom. Antiq. Pertaining to the festival of Minerva (March 19–23).
1839. J. Taylor, Poems & Transl., 210. The name of the Quinquatric Festival is derivable from the 51/4 days by which the year exceeds twelve months of thirty days each.
