International System of Units

Từ điển Oxford Learners Wordfinder Dictionary

noun

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
• Syn:
Systeme International d'Unites, Systeme International, SI system, SI, SI unit, International System
• Hypernyms:
metric system