magnum opus

views updated

mag·num o·pus / ˈmagnəm ˈōpəs/ • n. (pl. mag·num o·pus·es or mag·na o·pe·ra / ˈmagnə ˈōpərə; ˈäpərə/ ) a large and important work of art, music, or literature, esp. one regarded as the most important work of an artist or writer.