wadd

1 definition found

wadd - Collaborative International Dictionary of English v.0.48 :

  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.
            [1913 Webster]