• Webster's Revised Unabridged Dictionary
    • n 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.
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Century Dictionary and Cyclopedia
    • n sandiver Glass-gall. See anatron, 1.
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Chambers's Twentieth Century Dictionary
    • n Sandiver san′di-vėr the saline scum which forms on glass during its first fusion: glass-gall: product of glass-furnaces
    • Sandiver Also San′dever
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Webster's Revised Unabridged Dictionary
Perh. fr. OF. saïn, grease, fat + de, of + verre, glass (cf. Saim), or fr. F. sel de verre, sandiver


In literature:

What would there be to laugh at in the world, if the human sandiver were removed?
"The Atlantic Monthly, Volume 14, No. 83, September, 1864" by Various
This scum is called glass-gall or sandiver, and is carefully removed with iron ladles.
"British Manufacturing Industries" by L. Arnoux