"希土類" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "同音書きかえ",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 国際音声記号あり",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "きどるい"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "希土類元素"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日本語 化学",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "周期表で第3族の元素からアクチノイドを除いたもの。"
      ],
      "id": "ja-希土類-ja-noun-qySq6i4u",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "form": "きどるい",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[kìdóꜜrùì]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[kʲido̞ɾɯ̟ᵝi]"
    }
  ],
  "word": "希土類"
}

{
  "categories": [
    "同音書きかえ",
    "日本語",
    "日本語 名詞",
    "日本語 国際音声記号あり"
  ],
  "forms": [
    {
      "form": "きどるい"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "希土類元素"
    }
  ],
  "senses": [
    {
      "categories": [
        "日本語 化学"
      ],
      "glosses": [
        "周期表で第3族の元素からアクチノイドを除いたもの。"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "form": "きどるい",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[kìdóꜜrùì]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[kʲido̞ɾɯ̟ᵝi]"
    }
  ],
  "word": "希土類"
}