Patio
Pronunciation : Pa"ti*o
Part of Speech : n.
Etymology : [Sp., a court] (Metal)
Definition : Defn: A paved yard or floor where ores are cleaned and sorted, or where ore, salt, mercury, etc., are trampled by horses, to effect intermixture and amalgamation.
Note: The patioprocess is used to reduce silver ores by amalgamation.
Source : Webster's Unabridged Dictionary, 1913