Laun"der (?), n. [Contracted fr. OE. lavender, F. lavandiere, LL. lavandena, from L. lavare to wash. See Lave.]
1.
A washerwoman.
[Obs.]
2. Mining
A trough used by miners to receive the powdered ore from the box where it is beaten, or for carrying water to the stamps, or other apparatus, for comminuting, or sorting, the ore.
© Webster 1913.
Laun"der, v. i. [imp. & p. p. Laundered (?); p. pr. & vb. n. Laundering.]
1.
To wash, as clothes; to wash, and to smooth with a flatiron or mangle; to wash and iron; as, to launder shirts.
2.
To lave; to wet.
[Obs.]
Shak.
© Webster 1913.