noun
metric system
Refers to the international decimal system of weights and measures based on the meter, liter, and gram.
日本ではメートル法が使われている。
The metric system is used in Japan.
尺貫法 is the traditional Japanese system of measurement, while メートル法 is the metric system adopted later.
Compound of メートル (meter) and 法 (system, law), literally 'meter system'.