"demicircle" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "demi",
        "3": "circle"
      },
      "expansion": "demi- + circle",
      "name": "prefix"
    },
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "demi-cercle"
      },
      "expansion": "French demi-cercle",
      "name": "uder"
    }
  ],
  "etymology_text": "From demi- + circle. Compare French demi-cercle.",
  "forms": [
    {
      "form": "demicircles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "demicircle (plural demicircles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "56 44",
          "kind": "other",
          "name": "English terms prefixed with demi-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A semicircle."
      ],
      "id": "en-demicircle-en-noun-w5hGzpTl",
      "links": [
        [
          "semicircle",
          "semicircle"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "29 71",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
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        {
          "_dis": "29 71",
          "kind": "other",
          "name": "English undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "42 58",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An instrument for measuring angles in surveying etc., resembling a protractor with an alidade, sights, and compass."
      ],
      "id": "en-demicircle-en-noun-wG5e6rf~",
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "surveying",
          "surveying"
        ],
        [
          "protractor",
          "protractor"
        ],
        [
          "alidade",
          "alidade"
        ],
        [
          "sight",
          "sight"
        ],
        [
          "compass",
          "compass"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dɛmɪˈsɜːkəɫ]",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "demicircle"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms derived from French",
    "English terms prefixed with demi-",
    "English undefined derivations",
    "Pages with 1 entry",
    "Pages with entries"
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "demi",
        "3": "circle"
      },
      "expansion": "demi- + circle",
      "name": "prefix"
    },
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "demi-cercle"
      },
      "expansion": "French demi-cercle",
      "name": "uder"
    }
  ],
  "etymology_text": "From demi- + circle. Compare French demi-cercle.",
  "forms": [
    {
      "form": "demicircles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "demicircle (plural demicircles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A semicircle."
      ],
      "links": [
        [
          "semicircle",
          "semicircle"
        ]
      ]
    },
    {
      "glosses": [
        "An instrument for measuring angles in surveying etc., resembling a protractor with an alidade, sights, and compass."
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "surveying",
          "surveying"
        ],
        [
          "protractor",
          "protractor"
        ],
        [
          "alidade",
          "alidade"
        ],
        [
          "sight",
          "sight"
        ],
        [
          "compass",
          "compass"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dɛmɪˈsɜːkəɫ]",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "demicircle"
}