"automatic gearbox" meaning in Anglais

{
  "abbreviation": [
    {
      "word": "AT"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De automatic (« automatique ») et de gearbox (« boîte de vitesses »)."
  ],
  "forms": [
    {
      "form": "automatic gearboxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en anglais de la mécanique",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais de l’automobile",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Transmission automatique, boîte de vitesses automatique."
      ],
      "id": "fr-automatic_gearbox-en-noun-wIC~I6wq",
      "topics": [
        "automobile",
        "mechanical"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "common"
      ],
      "word": "auto"
    },
    {
      "word": "automatic transmission"
    },
    {
      "raw_tags": [
        "Plus courant"
      ],
      "word": "AT"
    },
    {
      "word": "self-shifting transmission"
    },
    {
      "word": "n-speed automatic"
    },
    {
      "raw_tags": [
        "Plus courant",
        "par exemple «  » ou «  »"
      ],
      "sense": "6 speed automatic",
      "word": "n speed automatic"
    }
  ],
  "word": "automatic gearbox"
}

{
  "abbreviation": [
    {
      "word": "AT"
    }
  ],
  "categories": [
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "De automatic (« automatique ») et de gearbox (« boîte de vitesses »)."
  ],
  "forms": [
    {
      "form": "automatic gearboxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Lexique en anglais de la mécanique",
        "Lexique en anglais de l’automobile"
      ],
      "glosses": [
        "Transmission automatique, boîte de vitesses automatique."
      ],
      "topics": [
        "automobile",
        "mechanical"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "common"
      ],
      "word": "auto"
    },
    {
      "word": "automatic transmission"
    },
    {
      "raw_tags": [
        "Plus courant"
      ],
      "word": "AT"
    },
    {
      "word": "self-shifting transmission"
    },
    {
      "word": "n-speed automatic"
    },
    {
      "raw_tags": [
        "Plus courant",
        "par exemple «  » ou «  »"
      ],
      "sense": "6 speed automatic",
      "word": "n speed automatic"
    }
  ],
  "word": "automatic gearbox"
}