"effet papillon" meaning in French

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  "etymology_text": "Calque of English butterfly effect.",
  "forms": [
    {
      "form": "effets papillon",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "effets papillons",
      "tags": [
        "plural"
      ]
    }
  ],
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      "name": "fr-noun"
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  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Time travel",
          "orig": "fr:Time travel",
          "parents": [
            "Relativity",
            "Science fiction",
            "Time",
            "Travel",
            "Physics",
            "Fiction",
            "Speculative fiction",
            "All topics",
            "Human activity",
            "Transport",
            "Sciences",
            "Artistic works",
            "Genres",
            "Fundamental",
            "Human behaviour",
            "Art",
            "Entertainment",
            "Human",
            "Culture",
            "Society"
          ],
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        }
      ],
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        "butterfly effect"
      ],
      "id": "en-effet_papillon-fr-noun-KDp9lqOQ",
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          "butterfly effect",
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      "related": [
        {
          "word": "réaction en chaîne"
        }
      ],
      "synonyms": [
        {
          "word": "effet domino"
        },
        {
          "word": "effet boule de neige"
        }
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "fr:effet papillon"
      ]
    }
  ],
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      "ipa": "/e.fɛ pa.pi.jɔ̃/"
    },
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  "word": "effet papillon"
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  ],
  "etymology_text": "Calque of English butterfly effect.",
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    {
      "form": "effets papillon",
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        "plural"
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    },
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        "plural"
      ]
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  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "related": [
    {
      "word": "réaction en chaîne"
    }
  ],
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        ]
      ],
      "synonyms": [
        {
          "word": "effet domino"
        },
        {
          "word": "effet boule de neige"
        }
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "fr:effet papillon"
      ]
    }
  ],
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  "word": "effet papillon"
}