"pulmón en libro" meaning in Spanish

{
  "forms": [
    {
      "form": "pulmones en libro",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "pulmón en libro m (plural pulmones en libro)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "pul‧món"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "es",
          "name": "Arachnology",
          "orig": "es:Arachnology",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "book lung"
      ],
      "id": "en-pulmón_en_libro-es-noun-6tUQmZsF",
      "links": [
        [
          "arachnology",
          "arachnology"
        ],
        [
          "book lung",
          "book lung"
        ]
      ],
      "raw_glosses": [
        "(arachnology) book lung"
      ],
      "synonyms": [
        {
          "word": "filotráquea"
        }
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "arachnology",
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pulˌmon en ˈlibɾo/"
    },
    {
      "ipa": "[pulˌmõn ẽn ˈli.β̞ɾo]"
    }
  ],
  "word": "pulmón en libro"
}

{
  "forms": [
    {
      "form": "pulmones en libro",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "pulmón en libro m (plural pulmones en libro)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "pul‧món"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish multiword terms",
        "Spanish nouns",
        "Spanish terms with IPA pronunciation",
        "es:Arachnology"
      ],
      "glosses": [
        "book lung"
      ],
      "links": [
        [
          "arachnology",
          "arachnology"
        ],
        [
          "book lung",
          "book lung"
        ]
      ],
      "raw_glosses": [
        "(arachnology) book lung"
      ],
      "synonyms": [
        {
          "word": "filotráquea"
        }
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "arachnology",
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pulˌmon en ˈlibɾo/"
    },
    {
      "ipa": "[pulˌmõn ẽn ˈli.β̞ɾo]"
    }
  ],
  "word": "pulmón en libro"
}