"mesencephalon" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mes-",
        "3": "encephalon"
      },
      "expansion": "mes- + encephalon",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mes- + encephalon.",
  "forms": [
    {
      "form": "mesencephalons",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "mesencephala",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "mesencephala"
      },
      "expansion": "mesencephalon (plural mesencephalons or mesencephala)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with mes-",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "hemimesencephalon"
        },
        {
          "word": "mesencephalic"
        }
      ],
      "glosses": [
        "A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion)."
      ],
      "id": "en-mesencephalon-en-noun-Sg3ln2Sy",
      "links": [
        [
          "rostral",
          "rostral"
        ],
        [
          "pons",
          "pons"
        ],
        [
          "caudal",
          "caudal"
        ],
        [
          "thalamus",
          "thalamus"
        ],
        [
          "tectum",
          "tectum"
        ],
        [
          "tegmentum",
          "tegmentum"
        ]
      ],
      "meronyms": [
        {
          "word": "tectum"
        },
        {
          "word": "tegmentum"
        }
      ],
      "synonyms": [
        {
          "word": "midbrain"
        }
      ],
      "wikipedia": [
        "mesencephalon"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌmɛzənˈsɛfələn/"
    },
    {
      "ipa": "/ˌmɛzənˈsɛfəlɒn/"
    }
  ],
  "word": "mesencephalon"
}

{
  "derived": [
    {
      "word": "hemimesencephalon"
    },
    {
      "word": "mesencephalic"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mes-",
        "3": "encephalon"
      },
      "expansion": "mes- + encephalon",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mes- + encephalon.",
  "forms": [
    {
      "form": "mesencephalons",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "mesencephala",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "mesencephala"
      },
      "expansion": "mesencephalon (plural mesencephalons or mesencephala)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "meronyms": [
    {
      "word": "tectum"
    },
    {
      "word": "tegmentum"
    }
  ],
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English 5-syllable words",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms prefixed with mes-",
        "English terms with IPA pronunciation"
      ],
      "glosses": [
        "A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion)."
      ],
      "links": [
        [
          "rostral",
          "rostral"
        ],
        [
          "pons",
          "pons"
        ],
        [
          "caudal",
          "caudal"
        ],
        [
          "thalamus",
          "thalamus"
        ],
        [
          "tectum",
          "tectum"
        ],
        [
          "tegmentum",
          "tegmentum"
        ]
      ],
      "wikipedia": [
        "mesencephalon"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌmɛzənˈsɛfələn/"
    },
    {
      "ipa": "/ˌmɛzənˈsɛfəlɒn/"
    }
  ],
  "synonyms": [
    {
      "word": "midbrain"
    }
  ],
  "word": "mesencephalon"
}