"chelydre" meaning in Latin

{
  "forms": [
    {
      "form": "chelȳdre",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun form",
        "head": "chelȳdre"
      },
      "expansion": "chelȳdre",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Snakes",
          "orig": "en:Snakes",
          "parents": [
            "Reptiles",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "chelȳdrus"
        }
      ],
      "glosses": [
        "vocative singular of chelȳdrus"
      ],
      "id": "en-chelydre-la-noun-BtQmpFtG",
      "links": [
        [
          "chelȳdrus",
          "chelydrus#Latin"
        ]
      ],
      "tags": [
        "form-of",
        "singular",
        "vocative"
      ]
    }
  ],
  "word": "chelydre"
}

{
  "forms": [
    {
      "form": "chelȳdre",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun form",
        "head": "chelȳdre"
      },
      "expansion": "chelȳdre",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Latin entries with incorrect language header",
        "Latin non-lemma forms",
        "Latin noun forms",
        "Latin terms spelled with Y",
        "Pages with 2 entries",
        "Pages with entries",
        "en:Snakes"
      ],
      "form_of": [
        {
          "word": "chelȳdrus"
        }
      ],
      "glosses": [
        "vocative singular of chelȳdrus"
      ],
      "links": [
        [
          "chelȳdrus",
          "chelydrus#Latin"
        ]
      ],
      "tags": [
        "form-of",
        "singular",
        "vocative"
      ]
    }
  ],
  "word": "chelydre"
}