Economics term for a monetary system where the value of the currency is based on two metals, typically gold and silver. Compare 複本位制 (ふくほんいせい), a synonym.
See also: 複本位制 (ふくほんいせい)
In the 19th century, many countries adopted bimetallism.
Synonym for bimetallism; 両本位制 is less common but carries the same meaning.
Compound of 両 (both) + 本位 (standard) + 制 (system), referring to a monetary system based on two metals.