(n)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), Syn.International System of Units, SI system, Systeme International, International System, SI unit, SI
[ほじょたんい, hojotan'i](n) (1) (obs) prefixed unit of measurement (i.e. millimeter, kilogram, etc.); (2) (See 組立単位) supplementary SI unit (radian and steradian)[Add to Longdo]