"simple extension" meaning in English

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      "form": "simple extensions",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "kind": "topical",
          "langcode": "en",
          "name": "Algebra",
          "orig": "en:Algebra",
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            "Formal sciences",
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      ],
      "glosses": [
        "A field extension obtained by adjoining a single element to a given field."
      ],
      "hyponyms": [
        {
          "word": "primitive element"
        }
      ],
      "id": "en-simple_extension-en-noun-hCdXvX3b",
      "links": [
        [
          "algebra",
          "algebra"
        ],
        [
          "field extension",
          "field extension"
        ],
        [
          "adjoin",
          "adjoin"
        ],
        [
          "field",
          "field"
        ]
      ],
      "qualifier": "field theory",
      "raw_glosses": [
        "(algebra, field theory) A field extension obtained by adjoining a single element to a given field."
      ],
      "topics": [
        "algebra",
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "simple extension"
      ]
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  "word": "simple extension"
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    {
      "form": "simple extensions",
      "tags": [
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      "expansion": "simple extension (plural simple extensions)",
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    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A field extension obtained by adjoining a single element to a given field."
      ],
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          "algebra",
          "algebra"
        ],
        [
          "field extension",
          "field extension"
        ],
        [
          "adjoin",
          "adjoin"
        ],
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          "field",
          "field"
        ]
      ],
      "qualifier": "field theory",
      "raw_glosses": [
        "(algebra, field theory) A field extension obtained by adjoining a single element to a given field."
      ],
      "topics": [
        "algebra",
        "mathematics",
        "sciences"
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      "wikipedia": [
        "simple extension"
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  "word": "simple extension"
}