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  1. Oxford Dictionary

    -gen

    • IPA[dʒ(ə)n]
    • comb.
      denoting a substance that produces something；denoting a substance or plant that is produced
    • 釋義

    複合形 (combining form)

    • 1. denoting a substance that produces something oxygen allergen
    • 2. denoting a substance or plant that is produced cultigen