\San"di*ver\, n. [Perh. fr. OF. sa["i]n grease, fat +
de of + verre glass (cf. {Saim}), or fr. F. sel de verre
sandiver.]
A whitish substance which is cast up, as a scum, from the
materials of glass in fusion, and, floating on the top, is
skimmed off; -- called also {glass gall}. [Formerly written
also {sandever}.]