The Collaborative International Dictionary
Polverine
Polverine \Pol"ve*rine\, n. [It. polverino, fr. polvere ?ust, L. pulvis, -veris. See Powder.] Glassmaker's ashes; a kind of potash or pearlash, brought from the Levant and Syria, -- used in the manufacture of fine glass.
Wiktionary
polverine
n. Glassmaker's ashes; a kind of potash or pearlash, brought from the Levant and Syria, -- used in the manufacture of fine glass.