fla·gran·cy \ˈflāgrənsē, -si also -la(i)g-\noun alsofla·grance\-n(t)s\ (pluralflagranciesalsoflagrances) Etymology: Latin flagrantia glowing heat, from flagrant-, flagrans + -ia -y 1.: the quality or state of being flagrant : atrocity < the flagrancy of his vicious conduct > 2.obsolete: a burning or heated state