Obs. [Sp., f. lavar to wash: see LAVE v.1] A place for washing gold ore.
1717. trans. Freziers Voy. S. Sea, 110. On the Descent of the Mountain they shewd me a Stream, where there is a rich Lavadero, or Place for washing of Gold.
176072. trans. Juan & Ulloas Voy. (ed. 3), I. 452. The gold taken out of all these Lavaderos or mines in the province of Quito.
1799. W. Tooke, View Russian Emp., III. 414. To these mines belong three lavaderos together having 861 troughs.