"Ehrenstein illusion" meaning in All languages combined

{
  "etymology_text": "Studied by the German psychologist Walter Ehrenstein (1899–1961).",
  "forms": [
    {
      "form": "Ehrenstein illusions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ehrenstein illusion (plural Ehrenstein illusions)",
      "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 language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "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": "Optical illusions",
          "orig": "en:Optical illusions",
          "parents": [
            "Vision",
            "Senses",
            "Perception",
            "Body",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An optical illusion in which the sides of a square placed inside a pattern of concentric circles take an apparent curved shape."
      ],
      "id": "en-Ehrenstein_illusion-en-noun-XfrtoTXw",
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ],
        [
          "square",
          "square"
        ],
        [
          "concentric",
          "concentric"
        ],
        [
          "circle",
          "circle"
        ]
      ],
      "wikipedia": [
        "Ehrenstein illusion"
      ]
    }
  ],
  "word": "Ehrenstein illusion"
}

{
  "etymology_text": "Studied by the German psychologist Walter Ehrenstein (1899–1961).",
  "forms": [
    {
      "form": "Ehrenstein illusions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ehrenstein illusion (plural Ehrenstein illusions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "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 eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Optical illusions"
      ],
      "glosses": [
        "An optical illusion in which the sides of a square placed inside a pattern of concentric circles take an apparent curved shape."
      ],
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ],
        [
          "square",
          "square"
        ],
        [
          "concentric",
          "concentric"
        ],
        [
          "circle",
          "circle"
        ]
      ],
      "wikipedia": [
        "Ehrenstein illusion"
      ]
    }
  ],
  "word": "Ehrenstein illusion"
}