"arrière-bouche" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "arrière-",
        "3": "bouche"
      },
      "expansion": "arrière- + bouche",
      "name": "af"
    }
  ],
  "etymology_text": "From arrière- + bouche.",
  "forms": [
    {
      "form": "arrière-bouches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "arrière-bouche f (plural arrière-bouches)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French terms prefixed with arrière-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of pharynx"
      ],
      "id": "en-arrière-bouche-fr-noun-Do5YzSlv",
      "links": [
        [
          "pharynx",
          "pharynx#French"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pharynx"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "arrière-bouche"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "arrière-",
        "3": "bouche"
      },
      "expansion": "arrière- + bouche",
      "name": "af"
    }
  ],
  "etymology_text": "From arrière- + bouche.",
  "forms": [
    {
      "form": "arrière-bouches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "arrière-bouche f (plural arrière-bouches)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French terms prefixed with arrière-",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Synonym of pharynx"
      ],
      "links": [
        [
          "pharynx",
          "pharynx#French"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pharynx"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "arrière-bouche"
}