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  • Definition
    • formation :an arrangement of people or things acting as a unit
      • a defensive formation|a formation of planes

    • formation :the act of forming or establishing something
      • the constitution of a PTA group last year|it was the establishment of his reputation|he still remembers the organization of the club

    • formation :natural process that causes something to form
      • the formation of gas in the intestine|the formation of crystals|the formation of pseudopods

    • formation :creation by mental activity
      • the formation of sentences|the formation of memories

    • formation :the act of fabricating something in a particular shape

      • formation :(geology) the geological features of the earth

        • formation :a particular spatial arrangement

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        • Derivative