"原子核反応" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 国際音声記号あり",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_名詞_サ変動詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_物理学",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "げんしかくはんのう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "核反応。"
      ],
      "id": "ja-原子核反応-ja-noun-Sg57irpo"
    }
  ],
  "sounds": [
    {
      "form": "げんしかくはんのー",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[gèńshíkákúháꜜǹnòò]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[ɡẽ̞ɰ̃ɕika̠kɯ̟ᵝhã̠nːo̞ː]"
    }
  ],
  "word": "原子核反応"
}

{
  "categories": [
    "日本語",
    "日本語 国際音声記号あり",
    "日本語_名詞",
    "日本語_名詞_サ変動詞",
    "日本語_物理学"
  ],
  "forms": [
    {
      "form": "げんしかくはんのう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "核反応。"
      ]
    }
  ],
  "sounds": [
    {
      "form": "げんしかくはんのー",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[gèńshíkákúháꜜǹnòò]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[ɡẽ̞ɰ̃ɕika̠kɯ̟ᵝhã̠nːo̞ː]"
    }
  ],
  "word": "原子核反応"
}