"code wheel" meaning in English

{
  "forms": [
    {
      "form": "code wheels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "code wheel (plural code wheels)",
      "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": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Video games",
          "orig": "en:Video games",
          "parents": [
            "Games",
            "Mass media",
            "Software",
            "Recreation",
            "Culture",
            "Media",
            "Computing",
            "Human activity",
            "Society",
            "Communication",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A flat circular object consisting of concentric portions printed with codes or patterns that appear at certain positions as the wheel is rotated, used as a form of copy protection distributed with older video games."
      ],
      "id": "en-code_wheel-en-noun-sdiU8Z92",
      "links": [
        [
          "flat",
          "flat"
        ],
        [
          "circular",
          "circular"
        ],
        [
          "concentric",
          "concentric"
        ],
        [
          "portion",
          "portion"
        ],
        [
          "rotate",
          "rotate"
        ],
        [
          "copy protection",
          "copy protection"
        ],
        [
          "video game",
          "video game"
        ]
      ]
    }
  ],
  "word": "code wheel"
}

{
  "forms": [
    {
      "form": "code wheels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "code wheel (plural code wheels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Video games"
      ],
      "glosses": [
        "A flat circular object consisting of concentric portions printed with codes or patterns that appear at certain positions as the wheel is rotated, used as a form of copy protection distributed with older video games."
      ],
      "links": [
        [
          "flat",
          "flat"
        ],
        [
          "circular",
          "circular"
        ],
        [
          "concentric",
          "concentric"
        ],
        [
          "portion",
          "portion"
        ],
        [
          "rotate",
          "rotate"
        ],
        [
          "copy protection",
          "copy protection"
        ],
        [
          "video game",
          "video game"
        ]
      ]
    }
  ],
  "word": "code wheel"
}