"cerveau postérieur" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de cerveau et de postérieur."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de l’anatomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonyme de rhombencéphale."
      ],
      "id": "fr-cerveau_postérieur-fr-noun-O1qSjKT0",
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "cerveau postérieur"
}

{
  "categories": [
    "Compositions en français",
    "Locutions nominales en français",
    "français"
  ],
  "etymology_texts": [
    "Composé de cerveau et de postérieur."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Lexique en français de l’anatomie"
      ],
      "glosses": [
        "Synonyme de rhombencéphale."
      ],
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "cerveau postérieur"
}