"eastern ratsnake" meaning in English

{
  "forms": [
    {
      "form": "eastern ratsnakes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "eastern ratsnake"
      },
      "expansion": "eastern ratsnake (plural eastern ratsnakes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Colubrid snakes",
          "orig": "en:Colubrid snakes",
          "parents": [
            "Snakes",
            "Reptiles",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A constrictor snake of the species Pantherophis alleghaniensis, native to eastern and central US and adjoining Canada."
      ],
      "id": "en-eastern_ratsnake-en-noun-fuLVTo~X",
      "synonyms": [
        {
          "sense": "Pantherophis alleghaniensis",
          "word": "black rat snake"
        },
        {
          "word": "eastern rat snake"
        }
      ]
    }
  ],
  "word": "eastern ratsnake"
}

{
  "forms": [
    {
      "form": "eastern ratsnakes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "eastern ratsnake"
      },
      "expansion": "eastern ratsnake (plural eastern ratsnakes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries using missing taxonomic name (species)",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Colubrid snakes"
      ],
      "glosses": [
        "A constrictor snake of the species Pantherophis alleghaniensis, native to eastern and central US and adjoining Canada."
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Pantherophis alleghaniensis",
      "word": "black rat snake"
    },
    {
      "word": "eastern rat snake"
    }
  ],
  "word": "eastern ratsnake"
}