metric system

Definitions

• The system of measurements developed in France in the 1790s and now used worldwide.
• The modern version of that system, (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.