SI unit meaning

UK US /si ˈjunət/ 3 syllables

SI unit (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).

Definition of SI unit

  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)
    • Today the United States is the only country in the world not totally committed to the Systeme International d'Unites

    Synonyms: Systeme International d'Unites, Systeme International, SI system, SI, International System of Units, International System

    Type of: metric system

How to pronounce SI unit

SI unit is pronounced /si ˈjunət/ in American English. It has 3 syllables.

More about SI unit on Wikipedia.