si unit

Noun
  1. A complete metric system of units of measurement for scientists;
    Fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela) (synset 113599470)
    "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites"
    is a type of: metric system - a decimal system of weights and measures based on the meter and the kilogram and the second
    same as: international system, international system of units, si, si system, systeme international, systeme international d'unites

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