Hypertext Webster Gateway: "Polverine"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
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