"marsh snake" meaning in English

{
  "forms": [
    {
      "form": "marsh snakes",
      "tags": [
        "plural"
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      "args": {},
      "expansion": "marsh snake (plural marsh snakes)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "glosses": [
        "Any of several snakes of the genus Hemiaspis"
      ],
      "id": "en-marsh_snake-en-noun-Wo4m2x2-",
      "links": [
        [
          "snake",
          "snake"
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    }
  ],
  "word": "marsh snake"
}

{
  "forms": [
    {
      "form": "marsh snakes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "marsh snake (plural marsh snakes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English multiword terms",
        "English nouns",
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      ],
      "glosses": [
        "Any of several snakes of the genus Hemiaspis"
      ],
      "links": [
        [
          "snake",
          "snake"
        ]
      ]
    }
  ],
  "word": "marsh snake"
}