† ˈscoriumObs. Erroneously formed sing. to scoria, mistaken for a neut. pl. 1681Grew Musæum iii. §ii. i. 325 The Scorium of the Freybergick S[ilver] Ore.1705Addison Italy, Antiq. near Naples 237 As we see the Scorium of Metals always gathers into a solid Piece.