"畑鼠" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "畑",
        "3": "鼠",
        "t1": "field",
        "t2": "mouse",
        "tr1": "hata",
        "tr2": "nezumi"
      },
      "expansion": "畑 (hata, “field”) + 鼠 (nezumi, “mouse”)",
      "name": "af"
    }
  ],
  "etymology_text": "畑 (hata, “field”) + 鼠 (nezumi, “mouse”)",
  "forms": [
    {
      "form": "畑鼠",
      "ruby": [
        [
          "畑",
          "はた"
        ],
        [
          "鼠",
          "ねずみ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "畑鼠",
      "ruby": [
        [
          "畑鼠",
          "ハタネズミ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hatanezumi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "はたねずみ",
        "2": "ハタネズミ"
      },
      "expansion": "畑(はた)鼠(ねずみ) or 畑鼠(ハタネズミ) • (hatanezumi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "ja",
          "name": "Cricetids",
          "orig": "ja:Cricetids",
          "parents": [
            "Rodents",
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "European water vole (Arvicola amphibius)",
          "roman": "mizuhatanezumi",
          "ruby": [
            [
              "水",
              "ミズ"
            ],
            [
              "畑",
              "ハタ"
            ],
            [
              "鼠",
              "ネズミ"
            ]
          ],
          "word": "水畑鼠"
        }
      ],
      "glosses": [
        "a Japanese grass vole (Microtus montebelli)"
      ],
      "id": "en-畑鼠-ja-noun-8emcd-Tm",
      "wikipedia": [
        "ja:ハタネズミ"
      ]
    }
  ],
  "sounds": [
    {
      "other": "はたねずみ"
    },
    {
      "ipa": "[ha̠ta̠ne̞zɨᵝmʲi]"
    }
  ],
  "word": "畑鼠"
}

{
  "derived": [
    {
      "english": "European water vole (Arvicola amphibius)",
      "roman": "mizuhatanezumi",
      "ruby": [
        [
          "水",
          "ミズ"
        ],
        [
          "畑",
          "ハタ"
        ],
        [
          "鼠",
          "ネズミ"
        ]
      ],
      "word": "水畑鼠"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "畑",
        "3": "鼠",
        "t1": "field",
        "t2": "mouse",
        "tr1": "hata",
        "tr2": "nezumi"
      },
      "expansion": "畑 (hata, “field”) + 鼠 (nezumi, “mouse”)",
      "name": "af"
    }
  ],
  "etymology_text": "畑 (hata, “field”) + 鼠 (nezumi, “mouse”)",
  "forms": [
    {
      "form": "畑鼠",
      "ruby": [
        [
          "畑",
          "はた"
        ],
        [
          "鼠",
          "ねずみ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "畑鼠",
      "ruby": [
        [
          "畑鼠",
          "ハタネズミ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hatanezumi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "はたねずみ",
        "2": "ハタネズミ"
      },
      "expansion": "畑(はた)鼠(ねずみ) or 畑鼠(ハタネズミ) • (hatanezumi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with hyōgaiji kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "ja:Cricetids"
      ],
      "glosses": [
        "a Japanese grass vole (Microtus montebelli)"
      ],
      "wikipedia": [
        "ja:ハタネズミ"
      ]
    }
  ],
  "sounds": [
    {
      "other": "はたねずみ"
    },
    {
      "ipa": "[ha̠ta̠ne̞zɨᵝmʲi]"
    }
  ],
  "word": "畑鼠"
}