Definition from Wiktionary, the free dictionary
- The system of measurements developed in France in the 1790s and now used worldwide.
- The modern version of that system, Systeme Internationale d'Unites (International System of Units), or SI system of measurements that is based on the base units of the meter/metre, the kilogram, the second, the ampere, the kelvin, the mole, and the candela.
- Any variant of that system, that was not codified as SI, such as cgs
system of measurements developed in France
International System of Units — see International System of Units