"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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Optical illusions",
          "orig": "en:Optical illusions",
          "parents": [
            "Vision",
            "Senses",
            "Perception",
            "Body",
            "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 eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "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"
}