"rock mouse" meaning in English

{
  "forms": [
    {
      "form": "rock mice",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "rock mice"
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      "expansion": "rock mouse (plural rock mice)",
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    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "90 10",
          "kind": "other",
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          "_dis": "94 6",
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          "parents": [],
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        {
          "_dis": "56 44",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Phiomorphs",
          "orig": "en:Phiomorphs",
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            "Mammals",
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            "Chordates",
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      ],
      "glosses": [
        "Synonym of rock rat"
      ],
      "id": "en-rock_mouse-en-noun-XGG6W2n0",
      "links": [
        [
          "rock rat",
          "rock rat#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "rock rat"
        }
      ]
    },
    {
      "categories": [],
      "glosses": [
        "A rodent of the genus Petromyscus."
      ],
      "id": "en-rock_mouse-en-noun-7gja1Hbl",
      "links": [
        [
          "rodent",
          "rodent"
        ]
      ]
    }
  ],
  "word": "rock mouse"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
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    "en:Phiomorphs"
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  "forms": [
    {
      "form": "rock mice",
      "tags": [
        "plural"
      ]
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      "expansion": "rock mouse (plural rock mice)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Synonym of rock rat"
      ],
      "links": [
        [
          "rock rat",
          "rock rat#English"
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          "word": "rock rat"
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      "glosses": [
        "A rodent of the genus Petromyscus."
      ],
      "links": [
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      ]
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  "word": "rock mouse"
}