1. To form into a mass, or wad, or into wadding; as, to wad tow or
cotton.
2. To insert or crowd a wad into; as, to wad a gun; also, to stuff or
line with some soft substance, or wadding, like cotton; as, to wad a
cloak.
{ Wad, 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.