1 historical Any of various silver coins current in Portuguese and Spanish territories from the 16th to the 18th centuries.
2A monetary unit of the province of Buenos Aires in Argentina, being a government bond with a face value of one peso.
The patacon was introduced in 2001 as a way of paying local workers without incurring further government debt.
Late 16th century. Apparently originally from Portuguese patacon, patacão from pataca + -on.