"magic eye" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "autostereogram"
      },
      "expansion": "(autostereogram):",
      "name": "sense"
    }
  ],
  "etymology_text": "(autostereogram): From the Magic Eye books featuring autostereograms, first released in 1993, which has now become a genericized trademark.",
  "forms": [
    {
      "form": "magic eyes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "magic eye (plural magic eyes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "An autostereogram."
      ],
      "id": "en-magic_eye-en-noun-IbcoYPKy",
      "links": [
        [
          "autostereogram",
          "autostereogram"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "42 58",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "32 68",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "21 79",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "35 65",
          "kind": "other",
          "name": "English genericized trademarks",
          "parents": [
            "Genericized trademarks",
            "Terms by etymology",
            "Trademarks",
            "Terms by usage"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "24 76",
          "kind": "topical",
          "langcode": "en",
          "name": "Electron tubes",
          "orig": "en:Electron tubes",
          "parents": [
            "Electronics",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A magic eye tube: a vacuum tube display device which was used as a tuning indicator."
      ],
      "id": "en-magic_eye-en-noun-Rz~1dkoJ",
      "links": [
        [
          "vacuum tube",
          "vacuum tube"
        ],
        [
          "tuning",
          "tuning"
        ],
        [
          "indicator",
          "indicator"
        ]
      ]
    }
  ],
  "wikipedia": [
    "Magic Eye"
  ],
  "word": "magic eye"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English entries with topic categories using raw markup",
    "English genericized trademarks",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys",
    "en:Electron tubes"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "autostereogram"
      },
      "expansion": "(autostereogram):",
      "name": "sense"
    }
  ],
  "etymology_text": "(autostereogram): From the Magic Eye books featuring autostereograms, first released in 1993, which has now become a genericized trademark.",
  "forms": [
    {
      "form": "magic eyes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "magic eye (plural magic eyes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "An autostereogram."
      ],
      "links": [
        [
          "autostereogram",
          "autostereogram"
        ]
      ]
    },
    {
      "glosses": [
        "A magic eye tube: a vacuum tube display device which was used as a tuning indicator."
      ],
      "links": [
        [
          "vacuum tube",
          "vacuum tube"
        ],
        [
          "tuning",
          "tuning"
        ],
        [
          "indicator",
          "indicator"
        ]
      ]
    }
  ],
  "wikipedia": [
    "Magic Eye"
  ],
  "word": "magic eye"
}