"bicycle roundabout" meaning in English

{
  "forms": [
    {
      "form": "bicycle roundabouts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bicycle roundabout (plural bicycle roundabouts)",
      "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": "Roads",
          "orig": "en:Roads",
          "parents": [
            "Road transport",
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A roundabout specifically for cyclists."
      ],
      "id": "en-bicycle_roundabout-en-noun-PmUYWMJM",
      "links": [
        [
          "roundabout",
          "roundabout"
        ],
        [
          "cyclist",
          "cyclist"
        ]
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "type of roundabout",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "fietsrotonde"
        }
      ]
    }
  ],
  "word": "bicycle roundabout"
}

{
  "forms": [
    {
      "form": "bicycle roundabouts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bicycle roundabout (plural bicycle roundabouts)",
      "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:Roads"
      ],
      "glosses": [
        "A roundabout specifically for cyclists."
      ],
      "links": [
        [
          "roundabout",
          "roundabout"
        ],
        [
          "cyclist",
          "cyclist"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "type of roundabout",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "fietsrotonde"
    }
  ],
  "word": "bicycle roundabout"
}