"Benham's top" meaning in All languages combined

{
  "etymology_text": "Invented by Charles Benham.",
  "forms": [
    {
      "form": "Benham's tops",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Benham's top (plural Benham's tops)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Optical illusions",
          "orig": "en:Optical illusions",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A disk marked with lines or colours that appears to produce arcs of colour when spun."
      ],
      "id": "en-Benham's_top-en-noun-Jpc6xZ3y",
      "synonyms": [
        {
          "word": "Benham's disc"
        },
        {
          "word": "Benham's disk"
        }
      ],
      "wikipedia": [
        "Charles Benham"
      ]
    }
  ],
  "word": "Benham's top"
}

{
  "etymology_text": "Invented by Charles Benham.",
  "forms": [
    {
      "form": "Benham's tops",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Benham's top (plural Benham's tops)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Optical illusions"
      ],
      "glosses": [
        "A disk marked with lines or colours that appears to produce arcs of colour when spun."
      ],
      "synonyms": [
        {
          "word": "Benham's disc"
        },
        {
          "word": "Benham's disk"
        }
      ],
      "wikipedia": [
        "Charles Benham"
      ]
    }
  ],
  "word": "Benham's top"
}