"Ames trapezoid" meaning in English

{
  "etymology_text": "Discovered by American ophthalmologist Adelbert Ames, Jr. in 1947.",
  "forms": [
    {
      "form": "Ames trapezoids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ames trapezoid (plural Ames trapezoids)",
      "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 a trapezoid, subdivided into squares to look like a paned window, and made to rotate, appears to be a rectangle."
      ],
      "id": "en-Ames_trapezoid-en-noun-BQMJTWT5",
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ],
        [
          "rectangle",
          "rectangle"
        ]
      ],
      "synonyms": [
        {
          "word": "Ames window"
        }
      ]
    }
  ],
  "word": "Ames trapezoid"
}

{
  "etymology_text": "Discovered by American ophthalmologist Adelbert Ames, Jr. in 1947.",
  "forms": [
    {
      "form": "Ames trapezoids",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ames trapezoid (plural Ames trapezoids)",
      "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 a trapezoid, subdivided into squares to look like a paned window, and made to rotate, appears to be a rectangle."
      ],
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ],
        [
          "rectangle",
          "rectangle"
        ]
      ],
      "synonyms": [
        {
          "word": "Ames window"
        }
      ]
    }
  ],
  "word": "Ames trapezoid"
}