"crab dolly" meaning in English

{
  "etymology_text": "In reference to the sideways motion of a crab.",
  "forms": [
    {
      "form": "crab dollies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crab dolly (plural crab dollies)",
      "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": "topical",
          "langcode": "en",
          "name": "Film",
          "orig": "en:Film",
          "parents": [
            "Entertainment",
            "Mass media",
            "Culture",
            "Media",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Vehicles",
          "orig": "en:Vehicles",
          "parents": [
            "Machines",
            "Transport",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A camera dolly whose front wheels steer in the same direction as the rear wheels."
      ],
      "id": "en-crab_dolly-en-noun-aHHkRVK9",
      "links": [
        [
          "film",
          "film#Noun"
        ],
        [
          "camera",
          "camera"
        ],
        [
          "dolly",
          "dolly"
        ],
        [
          "front",
          "front"
        ],
        [
          "wheel",
          "wheel"
        ],
        [
          "steer",
          "steer"
        ],
        [
          "rear",
          "rear"
        ]
      ],
      "raw_glosses": [
        "(film) A camera dolly whose front wheels steer in the same direction as the rear wheels."
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "crab dolly"
}

{
  "etymology_text": "In reference to the sideways motion of a crab.",
  "forms": [
    {
      "form": "crab dollies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crab dolly (plural crab dollies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Film",
        "en:Vehicles"
      ],
      "glosses": [
        "A camera dolly whose front wheels steer in the same direction as the rear wheels."
      ],
      "links": [
        [
          "film",
          "film#Noun"
        ],
        [
          "camera",
          "camera"
        ],
        [
          "dolly",
          "dolly"
        ],
        [
          "front",
          "front"
        ],
        [
          "wheel",
          "wheel"
        ],
        [
          "steer",
          "steer"
        ],
        [
          "rear",
          "rear"
        ]
      ],
      "raw_glosses": [
        "(film) A camera dolly whose front wheels steer in the same direction as the rear wheels."
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "crab dolly"
}