"Congo snake" meaning in English

{
  "forms": [
    {
      "form": "Congo snakes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Congo snake (plural Congo snakes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "parents": [
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        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Salamanders",
          "orig": "en:Salamanders",
          "parents": [
            "Amphibians",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
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            "Fundamental",
            "Nature"
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          "source": "w"
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      ],
      "glosses": [
        "An aquatic salamander of the genus Amphiuma."
      ],
      "id": "en-Congo_snake-en-noun-XblIFtQX",
      "links": [
        [
          "aquatic",
          "aquatic"
        ],
        [
          "salamander",
          "salamander"
        ],
        [
          "genus",
          "genus"
        ],
        [
          "Amphiuma",
          "Amphiuma#Translingual"
        ]
      ],
      "synonyms": [
        {
          "word": "amphiuma"
        }
      ]
    }
  ],
  "word": "Congo snake"
}

{
  "forms": [
    {
      "form": "Congo snakes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Congo snake (plural Congo snakes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Salamanders"
      ],
      "glosses": [
        "An aquatic salamander of the genus Amphiuma."
      ],
      "links": [
        [
          "aquatic",
          "aquatic"
        ],
        [
          "salamander",
          "salamander"
        ],
        [
          "genus",
          "genus"
        ],
        [
          "Amphiuma",
          "Amphiuma#Translingual"
        ]
      ],
      "synonyms": [
        {
          "word": "amphiuma"
        }
      ]
    }
  ],
  "word": "Congo snake"
}