"ellipsograph" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ellipse",
        "3": "-o-",
        "4": "-graph"
      },
      "expansion": "ellipse + -o- + -graph",
      "name": "af"
    }
  ],
  "etymology_text": "From ellipse + -o- + -graph.",
  "forms": [
    {
      "form": "ellipsographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ellipsograph (plural ellipsographs)",
      "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 terms interfixed with -o-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -graph",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A mechanical instrument used to trace out an ellipse."
      ],
      "id": "en-ellipsograph-en-noun-8bLWT7KR",
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "ellipse",
          "ellipse"
        ]
      ],
      "synonyms": [
        {
          "word": "trammel"
        }
      ]
    }
  ],
  "word": "ellipsograph"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ellipse",
        "3": "-o-",
        "4": "-graph"
      },
      "expansion": "ellipse + -o- + -graph",
      "name": "af"
    }
  ],
  "etymology_text": "From ellipse + -o- + -graph.",
  "forms": [
    {
      "form": "ellipsographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ellipsograph (plural ellipsographs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms interfixed with -o-",
        "English terms suffixed with -graph",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A mechanical instrument used to trace out an ellipse."
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "ellipse",
          "ellipse"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "trammel"
    }
  ],
  "word": "ellipsograph"
}