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Webster 1913 Edition

Noun.

[It.

polverino

, fr.

polvere [GREEK]

ust, L.

pulvis

-veris

. See

Glassmaker’s ashes; a kind of potash or pearlash, brought from the Levant and Syria, – used in the manufacture of fine glass.

polverine ‎(uncountable)

Glassmaker's ashes; a kind of potash or pearlash, brought from the Levant and Syria, -- used in the manufacture of fine glass.

polverine f