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  1. Oxford American Dictionary

    geometric progression

    • IPA[ˌjēəˈmetrik prəˈɡreSH(ə)n]

    美式

    • n.
      a progression of numbers with a constant ratio between each number and the one before (e.g., each subsequent number is increased by a factor of 3 in the progression 1, 3, 9, 27, 81).

    • noun: geometric progression, plural noun: geometric progressions