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  1. SI unit

    • n.
      a physical unit in the international SI system, which is based on the metre, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes to indicate multiplication or division by a power of ten.
    • noun: SI unit, plural noun: SI units

    • 相關詞
    • n.
      (in the international SI system) a fundamental unit that is defined arbitrarily and not by ...

    Oxford Dictionary

    • n.
      Any of various units of measurement, such as the newton and tesla, that are derived from the ...
    • n.
      (in the international SI system) a fundamental unit that is defined arbitrarily and not by ...

    Oxford American Dictionary

    • 更多解釋
    • n.
      a physical unit in the international SI system, which is based on the meter, kilogram, second, ...

    Oxford American Dictionary