"twinter" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "twi",
        "3": "winter"
      },
      "expansion": "twi- + winter",
      "name": "prefix"
    }
  ],
  "etymology_text": "twi- + winter",
  "forms": [
    {
      "form": "twinters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "twinter (plural twinters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with twi-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "An animal two winters old."
      ],
      "id": "en-twinter-en-noun-UyNZRLM~",
      "links": [
        [
          "animal",
          "animal"
        ],
        [
          "winter",
          "winter"
        ]
      ],
      "raw_glosses": [
        "(UK, dialect, obsolete) An animal two winters old."
      ],
      "related": [
        {
          "word": "thrinter"
        }
      ],
      "tags": [
        "UK",
        "dialectal",
        "obsolete"
      ]
    }
  ],
  "word": "twinter"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "twi",
        "3": "winter"
      },
      "expansion": "twi- + winter",
      "name": "prefix"
    }
  ],
  "etymology_text": "twi- + winter",
  "forms": [
    {
      "form": "twinters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "twinter (plural twinters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "thrinter"
    }
  ],
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English dialectal terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with twi-",
        "English terms with obsolete senses"
      ],
      "glosses": [
        "An animal two winters old."
      ],
      "links": [
        [
          "animal",
          "animal"
        ],
        [
          "winter",
          "winter"
        ]
      ],
      "raw_glosses": [
        "(UK, dialect, obsolete) An animal two winters old."
      ],
      "tags": [
        "UK",
        "dialectal",
        "obsolete"
      ]
    }
  ],
  "word": "twinter"
}