"tuétano" meaning in Spanish

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "hasta el tuétano"
    },
    {
      "_dis1": "0 0",
      "word": "hasta los tuétanos"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "tutano"
      },
      "expansion": "Portuguese tutano",
      "name": "cog"
    }
  ],
  "etymology_text": "Variation of tútano, from the onomatopoeic tut. Compare Portuguese tutano.",
  "forms": [
    {
      "form": "tuétanos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "tuétano m (plural tuétanos)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "tué‧ta‧no"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "76 24",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "62 38",
          "kind": "topical",
          "langcode": "es",
          "name": "Meats",
          "orig": "es:Meats",
          "parents": [
            "Foods",
            "Eating",
            "Food and drink",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "marrow, bone marrow (the substance inside bones, as well as a food made from it)"
      ],
      "id": "en-tuétano-es-noun-Gdm~Vqs3",
      "links": [
        [
          "marrow",
          "marrow"
        ],
        [
          "bone marrow",
          "bone marrow"
        ]
      ],
      "synonyms": [
        {
          "word": "médula"
        },
        {
          "word": "caracú"
        }
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Botany",
          "orig": "es:Botany",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "pith"
      ],
      "id": "en-tuétano-es-noun-FYuZPCuN",
      "links": [
        [
          "botany",
          "botany"
        ],
        [
          "pith",
          "pith"
        ]
      ],
      "raw_glosses": [
        "(botany) pith"
      ],
      "synonyms": [
        {
          "word": "médula"
        }
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "biology",
        "botany",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈtwetano/"
    },
    {
      "ipa": "[ˈt̪we.t̪a.no]"
    },
    {
      "rhymes": "-etano"
    }
  ],
  "word": "tuétano"
}

{
  "categories": [
    "Rhymes:Spanish/etano",
    "Rhymes:Spanish/etano/3 syllables",
    "Spanish 3-syllable words",
    "Spanish countable nouns",
    "Spanish entries with incorrect language header",
    "Spanish lemmas",
    "Spanish masculine nouns",
    "Spanish nouns",
    "Spanish terms with IPA pronunciation",
    "es:Meats"
  ],
  "derived": [
    {
      "word": "hasta el tuétano"
    },
    {
      "word": "hasta los tuétanos"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "tutano"
      },
      "expansion": "Portuguese tutano",
      "name": "cog"
    }
  ],
  "etymology_text": "Variation of tútano, from the onomatopoeic tut. Compare Portuguese tutano.",
  "forms": [
    {
      "form": "tuétanos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "tuétano m (plural tuétanos)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "tué‧ta‧no"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "marrow, bone marrow (the substance inside bones, as well as a food made from it)"
      ],
      "links": [
        [
          "marrow",
          "marrow"
        ],
        [
          "bone marrow",
          "bone marrow"
        ]
      ],
      "synonyms": [
        {
          "word": "médula"
        },
        {
          "word": "caracú"
        }
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "categories": [
        "es:Botany"
      ],
      "glosses": [
        "pith"
      ],
      "links": [
        [
          "botany",
          "botany"
        ],
        [
          "pith",
          "pith"
        ]
      ],
      "raw_glosses": [
        "(botany) pith"
      ],
      "synonyms": [
        {
          "word": "médula"
        }
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "biology",
        "botany",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈtwetano/"
    },
    {
      "ipa": "[ˈt̪we.t̪a.no]"
    },
    {
      "rhymes": "-etano"
    }
  ],
  "word": "tuétano"
}