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  1. metric system

    • IPA[ˈmetrik ˌsistəm]

    美式

    • n.
      the decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass. The system was first proposed by the French astronomer and mathematician Gabriel Mouton (1618–94) in 1670 and was standardized in France under the Republican government in the 1790s.
    • noun: metric system, plural noun: metric systems