"nguyên hàm" meaning in Vietnamese

{
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        "2": "Sino-Vietnamese words"
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      "name": "categorize"
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        "2": "origin; foundation",
        "3": "函",
        "4": "function"
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      "expansion": "Sino-Vietnamese word from 原 (“origin; foundation”) and 函 (“function”)",
      "name": "vi-etym-sino"
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    {
      "args": {
        "1": "vi",
        "2": "zh",
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      "expansion": "calque of Chinese 原函數 /原函数 (yuánhánshù)",
      "name": "calque"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 原 (“origin; foundation”) and 函 (“function”). Possibly calque of Chinese 原函數 /原函数 (yuánhánshù).",
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      "args": {
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        "3": "",
        "4": "",
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      "expansion": "nguyên hàm",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "nguyên hàm",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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          "parents": [],
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        },
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          "name": "Vietnamese entries with incorrect language header",
          "parents": [],
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          "langcode": "vi",
          "name": "Mathematics",
          "orig": "vi:Mathematics",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "antiderivative"
      ],
      "id": "en-nguyên_hàm-vi-noun-LSOwYaVr",
      "links": [
        [
          "mathematics",
          "mathematics"
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          "antiderivative",
          "antiderivative"
        ]
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        "(mathematics) antiderivative"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "vi:nguyên hàm"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ŋwiən˧˧ haːm˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ŋwiəŋ˧˧ haːm˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ŋwiəŋ˧˧ haːm˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "nguyên hàm"
}

{
  "etymology_templates": [
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      "expansion": "",
      "name": "etymid"
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        "1": "vi",
        "2": "Sino-Vietnamese words"
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      "expansion": "",
      "name": "categorize"
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        "1": "原",
        "2": "origin; foundation",
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        "4": "function"
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        "1": "vi",
        "2": "zh",
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      "expansion": "calque of Chinese 原函數 /原函数 (yuánhánshù)",
      "name": "calque"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 原 (“origin; foundation”) and 函 (“function”). Possibly calque of Chinese 原函數 /原函数 (yuánhánshù).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
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      },
      "expansion": "nguyên hàm",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "nguyên hàm",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
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        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese terms calqued from Chinese",
        "Vietnamese terms derived from Chinese",
        "Vietnamese terms with IPA pronunciation",
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      "glosses": [
        "antiderivative"
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        [
          "mathematics",
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          "antiderivative",
          "antiderivative"
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        "(mathematics) antiderivative"
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        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "vi:nguyên hàm"
      ]
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  ],
  "sounds": [
    {
      "ipa": "[ŋwiən˧˧ haːm˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ŋwiəŋ˧˧ haːm˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ŋwiəŋ˧˧ haːm˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "nguyên hàm"
}