system 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

International System, International System of Units, SI, SI system, Systeme International, Systeme International d'Unites - 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