"cul-de-four" meaning in English

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      "expansion": "French cul-de-four",
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  "etymology_text": "French cul-de-four, literally \"bottom of the oven\".",
  "forms": [
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      "form": "culs-de-four",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A sort of low spherical vault, oven-like."
      ],
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      "raw_glosses": [
        "(architecture) A sort of low spherical vault, oven-like."
      ],
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  "word": "cul-de-four"
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  ],
  "etymology_text": "French cul-de-four, literally \"bottom of the oven\".",
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      "tags": [
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  "lang_code": "en",
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        "A sort of low spherical vault, oven-like."
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        "(architecture) A sort of low spherical vault, oven-like."
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