"fourth brain" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De fourth (quatrième) et brain (cerveau)."
  ],
  "forms": [
    {
      "form": "fourth brains",
      "ipas": [
        "\\'fɔ:θ 'bɹeɪnz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "site liveclay.wordpress.com",
          "text": "Incidentally, I recently learned that the heart, with its 30,000 neurons, is now considered to be the “fourth brain” because there is neurophysiological proof of what poets, mystics, and ancient tradition have always asserted: the heart, not the brain, is the center of our being and is capable of “knowing” on an emotional and intuitive level of its own."
        }
      ],
      "glosses": [
        "Nom dont on qualifie parfois le cœur."
      ],
      "id": "fr-fourth_brain-en-noun-rbSRYS5J"
    }
  ],
  "sounds": [
    {
      "ipa": "\\'fɔ:θ 'bɹeɪn\\"
    }
  ],
  "word": "fourth brain"
}

{
  "categories": [
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "De fourth (quatrième) et brain (cerveau)."
  ],
  "forms": [
    {
      "form": "fourth brains",
      "ipas": [
        "\\'fɔ:θ 'bɹeɪnz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire"
      ],
      "examples": [
        {
          "ref": "site liveclay.wordpress.com",
          "text": "Incidentally, I recently learned that the heart, with its 30,000 neurons, is now considered to be the “fourth brain” because there is neurophysiological proof of what poets, mystics, and ancient tradition have always asserted: the heart, not the brain, is the center of our being and is capable of “knowing” on an emotional and intuitive level of its own."
        }
      ],
      "glosses": [
        "Nom dont on qualifie parfois le cœur."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\'fɔ:θ 'bɹeɪn\\"
    }
  ],
  "word": "fourth brain"
}