Hypertext Webster Gateway: "Wadd"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Wad \Wad\, Wadd \Wadd\, n. (Min.)
(a) An earthy oxide of manganese, or mixture of different
oxides and water, with some oxide of iron, and often
silica, alumina, lime, or baryta; black ocher. There
are several varieties.
(b) Plumbago, or black lead.
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