noun
International System of Units; SI
Technical term for the modern metric system of measurement; often abbreviated as SI.
See also: ＳＩ
国際単位系では、長さの基本単位はメートルです。
In the International System of Units, the base unit of length is the meter.
メートル法 is the broader metric system, while 国際単位系 specifically refers to the modern SI standard adopted internationally.
Compound of 国際 (international) + 単位 (unit) + 系 (system). A direct translation of the English term 'International System of Units'.