"vesper bat" meaning in English

{
  "forms": [
    {
      "form": "vesper bats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vesper bat (plural vesper bats)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "name": "Terms with Finnish translations",
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        {
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Bats",
          "orig": "en:Bats",
          "parents": [
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any member of the Vespertilionidae, a family of bats."
      ],
      "id": "en-vesper_bat-en-noun-No~gR~F2",
      "links": [
        [
          "Vespertilionidae",
          "Vespertilionidae#Translingual"
        ],
        [
          "bat",
          "bat"
        ]
      ],
      "synonyms": [
        {
          "sense": "bat in Vespertilionidae",
          "word": "common bat"
        },
        {
          "sense": "bat in Vespertilionidae",
          "word": "evening bat"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "bat in Vespertilionidae",
          "word": "aitolepakko"
        },
        {
          "code": "ga",
          "lang": "Irish",
          "sense": "bat in Vespertilionidae",
          "tags": [
            "feminine"
          ],
          "word": "ialtóg choiteann"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "bat in Vespertilionidae",
          "tags": [
            "masculine"
          ],
          "word": "vespertiliónido"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "bat in Vespertilionidae",
          "word": "läderlapp"
        }
      ],
      "wikipedia": [
        "vesper bat"
      ]
    }
  ],
  "word": "vesper bat"
}

{
  "forms": [
    {
      "form": "vesper bats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "vesper bat (plural vesper bats)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "Terms with Finnish translations",
        "Terms with Irish translations",
        "Terms with Spanish translations",
        "Terms with Swedish translations",
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      ],
      "glosses": [
        "Any member of the Vespertilionidae, a family of bats."
      ],
      "links": [
        [
          "Vespertilionidae",
          "Vespertilionidae#Translingual"
        ],
        [
          "bat",
          "bat"
        ]
      ],
      "wikipedia": [
        "vesper bat"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "bat in Vespertilionidae",
      "word": "common bat"
    },
    {
      "sense": "bat in Vespertilionidae",
      "word": "evening bat"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "bat in Vespertilionidae",
      "word": "aitolepakko"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "sense": "bat in Vespertilionidae",
      "tags": [
        "feminine"
      ],
      "word": "ialtóg choiteann"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "bat in Vespertilionidae",
      "tags": [
        "masculine"
      ],
      "word": "vespertiliónido"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "bat in Vespertilionidae",
      "word": "läderlapp"
    }
  ],
  "word": "vesper bat"
}