"전구체" meaning in Korean

{
  "etymology_templates": [
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        "1": "ko",
        "2": "前具體"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "前",
        "2": "before",
        "3": "具體",
        "4": "concrete existence"
      },
      "expansion": "Sino-Korean word from 前 (“before”) + 具體 (“concrete existence”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 前 (“before”) + 具體 (“concrete existence”).",
  "forms": [
    {
      "form": "jeon'guche",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "前具體",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "前具體"
      },
      "expansion": "전구체 • (jeon'guche) (hanja 前具體)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ko",
          "name": "Chemistry",
          "orig": "ko:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "precursor (one of the compounds that participates in the chemical reaction that produces another compound)"
      ],
      "id": "en-전구체-ko-noun-MuDyDy2D",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "precursor",
          "precursor"
        ],
        [
          "compound",
          "chemical compound#English"
        ],
        [
          "chemical reaction",
          "chemical reaction#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) precursor (one of the compounds that participates in the chemical reaction that produces another compound)"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕʌ̹nɡut͡ɕʰe̞]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "전구체"
    },
    {
      "other": "[전구체]"
    }
  ],
  "word": "전구체"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ko",
        "2": "前具體"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "前",
        "2": "before",
        "3": "具體",
        "4": "concrete existence"
      },
      "expansion": "Sino-Korean word from 前 (“before”) + 具體 (“concrete existence”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 前 (“before”) + 具體 (“concrete existence”).",
  "forms": [
    {
      "form": "jeon'guche",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "前具體",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "前具體"
      },
      "expansion": "전구체 • (jeon'guche) (hanja 前具體)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean nouns",
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        "Korean terms with redundant transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Korean words",
        "ko:Chemistry"
      ],
      "glosses": [
        "precursor (one of the compounds that participates in the chemical reaction that produces another compound)"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "precursor",
          "precursor"
        ],
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          "compound",
          "chemical compound#English"
        ],
        [
          "chemical reaction",
          "chemical reaction#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) precursor (one of the compounds that participates in the chemical reaction that produces another compound)"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
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      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "전구체"
    },
    {
      "other": "[전구체]"
    }
  ],
  "word": "전구체"
}