Metric system
WordNet
noun
(1) A decimal system of weights and measures based on the meter and the kilogram and the second
WiktionaryText
Noun
- 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.
- see Appendix on SI Units