"ヒ素" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "ヒ化"
    },
    {
      "word": "ヒ化物"
    }
  ],
  "etymology_texts": [
    "(1872) Composé de 砒, hi (« arsenic ») et de 素, so (« élément »), créé par Morisaburō Ichikawa dans Rika Nikki."
  ],
  "forms": [
    {
      "form": "ひそ",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "hiso",
      "tags": [
        "transcription"
      ]
    },
    {
      "form": "ヒソ",
      "ipas": [
        "\\çi˦.so̞˨.◌˨\\"
      ],
      "raw_tags": [
        "Prononciation"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "tags": [
        "dated"
      ],
      "word": "砒素"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Éléments chimiques en japonais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Arsenic (As)."
      ],
      "id": "fr-ヒ素-ja-noun-C6gb9Cfi",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\çi.so\\"
    }
  ],
  "word": "ヒ素"
}

{
  "categories": [
    "Noms communs en japonais",
    "japonais"
  ],
  "derived": [
    {
      "word": "ヒ化"
    },
    {
      "word": "ヒ化物"
    }
  ],
  "etymology_texts": [
    "(1872) Composé de 砒, hi (« arsenic ») et de 素, so (« élément »), créé par Morisaburō Ichikawa dans Rika Nikki."
  ],
  "forms": [
    {
      "form": "ひそ",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "hiso",
      "tags": [
        "transcription"
      ]
    },
    {
      "form": "ヒソ",
      "ipas": [
        "\\çi˦.so̞˨.◌˨\\"
      ],
      "raw_tags": [
        "Prononciation"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "tags": [
        "dated"
      ],
      "word": "砒素"
    }
  ],
  "senses": [
    {
      "categories": [
        "Éléments chimiques en japonais"
      ],
      "glosses": [
        "Arsenic (As)."
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\çi.so\\"
    }
  ],
  "word": "ヒ素"
}