"semifield" meaning in English

{
  "derived": [
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      "_dis1": "0 0",
      "word": "presemifield"
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "semi",
        "3": "field"
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      "expansion": "semi- + field",
      "name": "prefix"
    }
  ],
  "etymology_text": "From semi- + field.",
  "forms": [
    {
      "form": "semifields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "semifield (plural semifields)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "51 49",
          "kind": "other",
          "name": "English terms prefixed with semi-",
          "parents": [],
          "source": "w+disamb"
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      ],
      "glosses": [
        "Synonym of hemifield (“half of the field of vision”)"
      ],
      "id": "en-semifield-en-noun-JVbB7XTa",
      "links": [
        [
          "hemifield",
          "hemifield#English"
        ]
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      "synonyms": [
        {
          "extra": "half of the field of vision",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "hemifield"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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        {
          "_dis": "51 49",
          "kind": "other",
          "name": "English terms prefixed with semi-",
          "parents": [],
          "source": "w+disamb"
        },
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          "_dis": "27 73",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
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      ],
      "glosses": [
        "An algebraic structure with two binary operations, addition and multiplication, similar to the field but with some axioms relaxed."
      ],
      "id": "en-semifield-en-noun-ihDPSe9H",
      "links": [
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          "mathematics",
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          "algebraic",
          "algebraic"
        ],
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          "structure",
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        ],
        [
          "binary",
          "binary"
        ],
        [
          "operation",
          "operation"
        ],
        [
          "addition",
          "addition"
        ],
        [
          "multiplication",
          "multiplication"
        ],
        [
          "field",
          "field"
        ],
        [
          "axiom",
          "axiom"
        ],
        [
          "relax",
          "relax"
        ]
      ],
      "raw_glosses": [
        "(mathematics) An algebraic structure with two binary operations, addition and multiplication, similar to the field but with some axioms relaxed."
      ],
      "topics": [
        "mathematics",
        "sciences"
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  ],
  "wikipedia": [
    "semifield"
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  "word": "semifield"
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{
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    "Pages with 1 entry"
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  "derived": [
    {
      "word": "presemifield"
    }
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  ],
  "etymology_text": "From semi- + field.",
  "forms": [
    {
      "form": "semifields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "semifield (plural semifields)",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "Synonym of hemifield (“half of the field of vision”)"
      ],
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    },
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      "glosses": [
        "An algebraic structure with two binary operations, addition and multiplication, similar to the field but with some axioms relaxed."
      ],
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        [
          "mathematics",
          "mathematics"
        ],
        [
          "algebraic",
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        ],
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          "structure",
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        ],
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          "binary",
          "binary"
        ],
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          "operation",
          "operation"
        ],
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          "addition",
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        "(mathematics) An algebraic structure with two binary operations, addition and multiplication, similar to the field but with some axioms relaxed."
      ],
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        "mathematics",
        "sciences"
      ]
    }
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}