| metric system n. A decimal system of units based on the meter as a unit length, the kilogram as a unit mass, and the second as a unit time. See Table at measurement. |
metric system
n
(Mathematics & Measurements / Units) any decimal system of units based on the metre. For scientific purposes the Système International d'Unités (SI units) is used
| metric system A decimal system of weights and measures based on the meter as a unit of length, the kilogram as a unit of mass, and the liter as a unit of volume. Compare US Customary System. See Table at measurement. |
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| Noun | 1. |  metric system - a decimal system of weights and measures based on the meter and the kilogram and the secondsystem of weights and measures - system of measurement for length and weight and duration cgs, cgs system - system of measurement based on centimeters and grams and seconds SI system, SI unit, Systeme International, Systeme International d'Unites, International System, International System of Units, SI - 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); "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites" metric weight unit, weight unit - a decimal unit of weight based on the gram |
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