"pentaarsenic" meaning in English

{
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    {
      "args": {
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        "2": "penta",
        "3": "arsenic"
      },
      "expansion": "penta- + arsenic",
      "name": "prefix"
    }
  ],
  "etymology_text": "From penta- + arsenic.",
  "head_templates": [
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      "expansion": "pentaarsenic (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with penta-",
          "parents": [],
          "source": "w"
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          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "Five arsenic atoms or ions in a compound (As₅)."
      ],
      "id": "en-pentaarsenic-en-noun-xpooSBH0",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "arsenic",
          "arsenic"
        ]
      ],
      "raw_glosses": [
        "(chemistry, in combination) Five arsenic atoms or ions in a compound (As₅)."
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "pentaarsenic"
}

{
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    {
      "args": {
        "1": "en",
        "2": "penta",
        "3": "arsenic"
      },
      "expansion": "penta- + arsenic",
      "name": "prefix"
    }
  ],
  "etymology_text": "From penta- + arsenic.",
  "head_templates": [
    {
      "args": {
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      },
      "expansion": "pentaarsenic (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English lemmas",
        "English nouns",
        "English terms prefixed with penta-",
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        "en:Chemistry"
      ],
      "glosses": [
        "Five arsenic atoms or ions in a compound (As₅)."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "arsenic",
          "arsenic"
        ]
      ],
      "raw_glosses": [
        "(chemistry, in combination) Five arsenic atoms or ions in a compound (As₅)."
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "pentaarsenic"
}